JP2018042681A - Washing machine - Google Patents

Washing machine Download PDF

Info

Publication number
JP2018042681A
JP2018042681A JP2016178837A JP2016178837A JP2018042681A JP 2018042681 A JP2018042681 A JP 2018042681A JP 2016178837 A JP2016178837 A JP 2016178837A JP 2016178837 A JP2016178837 A JP 2016178837A JP 2018042681 A JP2018042681 A JP 2018042681A
Authority
JP
Japan
Prior art keywords
support member
tub
elastic body
housing
side connecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2016178837A
Other languages
Japanese (ja)
Inventor
佐藤 弘樹
Hiroki Sato
弘樹 佐藤
馬場 義一
Yoshikazu Baba
義一 馬場
川口 智也
Tomoya Kawaguchi
智也 川口
貴裕 辻
Takahiro Tsuji
貴裕 辻
間宮 春夫
Haruo Mamiya
春夫 間宮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Washing Machine Co Ltd
Aqua KK
Original Assignee
Qingdao Haier Washing Machine Co Ltd
Aqua KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Washing Machine Co Ltd, Aqua KK filed Critical Qingdao Haier Washing Machine Co Ltd
Priority to JP2016178837A priority Critical patent/JP2018042681A/en
Priority to PCT/CN2017/101503 priority patent/WO2018050060A1/en
Priority to CN201780055420.1A priority patent/CN109689960A/en
Publication of JP2018042681A publication Critical patent/JP2018042681A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/24Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a vertical axis
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/04Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a vertical axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine capable of suppressing an abnormal vibration of a washing tub that causes noise.SOLUTION: A washing machine 1 comprises: a housing 2; a washing tub 3 that has an inner tub 11 and an outer tub 10 and is arranged in the housing 2; a supporting member 5 that elastically supports the washing tub 3; a housing-side connection part 6 that is provided on the housing 2 and to which an upper part 20 of the supporting member 5 is connected; a tub-side connection part 15 that is provided on the outer tub 10 and to which a lower part 21 of the supporting member 5 is connected; and an upper side elastic body 40; and a lower side elastic body 41. The upper side elastic body 40 is interposed between the upper part 20 of the supporting member 5 and the housing-side connection part 6 and elastically joins the upper part 20 to the housing-side connection part 6. The lower side elastic body 41 is interposed between the lower part 21 of the supporting member 5 and the tub-side connection part 15 and elastically joins the lower part 21 to the tub-side connection part 15.SELECTED DRAWING: Figure 1

Description

この発明は、洗濯機に関する。   The present invention relates to a washing machine.

下記特許文献1に記載の洗濯機は、直方体状の筐体と、洗濯兼脱水槽を収容して筐体内に配置された水槽と、筐体の四隅に1本ずつ配置された釣り棒とを含む。筐体の四隅上部のそれぞれには、補強支持部が設けられる。水槽の下部の4箇所には、ダンパ支持部が形成される。釣り棒の上端には、釣り棒支持部が設けられ、釣り棒の下端には、制振部材が設けられる。釣り棒支持部が補強支持部に上から球面接触した状態にあり、制振部材がダンパ支持部に下から球面接触した状態にある。これにより、水槽は、4本の釣り棒によって吊り下げられた状態にある。制振部材は、その内部にバネおよびダンパを備える。バネおよびダンパにより、洗濯機の脱水工程などにおいて洗濯兼脱水槽の回転によって発生した水槽の振動が筐体に伝わることが抑制される。   The washing machine described in Patent Document 1 below includes a rectangular parallelepiped housing, a water tub disposed in the housing that accommodates a washing and dewatering tub, and fishing rods disposed one by one in the four corners of the housing. Including. Reinforcing support portions are provided at the upper corners of the casing. Damper support portions are formed at four locations below the water tank. A fishing rod support is provided at the upper end of the fishing rod, and a damping member is provided at the lower end of the fishing rod. The fishing rod support portion is in spherical contact with the reinforcing support portion from above, and the damping member is in spherical contact with the damper support portion from below. Thereby, the water tank is in a state of being suspended by the four fishing rods. The vibration damping member includes a spring and a damper therein. Due to the spring and the damper, the vibration of the water tank generated by the rotation of the washing and dewatering tank in the dehydration process of the washing machine and the like is suppressed from being transmitted to the housing.

特開2015−109943号公報Japanese Patent Laying-Open No. 2015-109943

特許文献1に記載の洗濯機において、各釣り棒は、筐体の補強支持部および水槽のダンパ支持部に引っ掛かっただけの状態にある。この場合、洗濯物が洗濯兼脱水槽内で偏って配置された状態において、脱水工程における洗濯兼脱水槽の回転数が所定値を上回ると、振動が増大する水槽の動きに制振部材が追従できなくなることによって、釣り棒が瞬間的に補強支持部およびダンパ支持部から離れてしまう虞がある。釣り棒が補強支持部およびダンパ支持部から離れてしまうと、瞬間的にフリーになった水槽の挙動が不規則になることによって、水槽に異常振動が発生する。異常振動によって、水槽の振動がさらに増大する。すると、水槽が筐体に接触することによって、騒音が発生する。また、補強支持部およびダンパ支持部から離れた釣り棒がこれらに再び接触する際に発生する接触音も、騒音となる。   In the washing machine described in Patent Document 1, each fishing rod is in a state of being caught only on the reinforcing support part of the housing and the damper support part of the water tank. In this case, in the state where the laundry is arranged in the washing / dehydrating basin in a biased manner, if the rotation speed of the washing / dehydrating tub in the dehydration process exceeds a predetermined value, the vibration damping member follows the movement of the water tub in which vibration increases. When it becomes impossible, there is a possibility that the fishing rod may be momentarily separated from the reinforcing support portion and the damper support portion. When the fishing rod moves away from the reinforcing support portion and the damper support portion, the behavior of the water tank that is instantaneously free becomes irregular, and abnormal vibration occurs in the water tank. Abnormal vibration further increases the vibration of the aquarium. Then, noise is generated by the water tank contacting the housing. Further, the contact sound generated when the fishing rods separated from the reinforcing support part and the damper support part come into contact with them again becomes noise.

この発明は、かかる背景のもとでなされたもので、騒音の原因となる洗濯槽の異常振動を抑制できる洗濯機を提供することを目的とする。   The present invention has been made under such a background, and an object thereof is to provide a washing machine capable of suppressing abnormal vibration of a washing tub that causes noise.

本発明は、筐体と、洗濯物を収容して回転可能な内槽と、前記内槽を収容する外槽とを有し、前記筐体内に配置される洗濯槽と、前記筐体から吊り下がる棒状に形成され、上下に伸縮することによって前記洗濯槽を弾性支持する支持部材と、前記筐体に設けられ、前記支持部材の上部が連結される筐体側連結部と、前記外槽に設けられ、前記支持部材の下部が連結される槽側連結部と、前記支持部材の前記上部と前記筐体側連結部との間に介在し、前記上部を前記筐体側連結部に弾性的に連結する上側弾性体と、前記支持部材の前記下部と前記槽側連結部との間に介在し、前記下部を前記槽側連結部に弾性的に連結する下側弾性体とを含む、洗濯機である。   The present invention has a housing, a rotatable inner tub that accommodates laundry, and an outer tub that accommodates the inner tub, the laundry tub disposed in the housing, and suspended from the housing A support member that is formed in a bar-like shape and elastically supports the washing tub by vertically expanding and contracting, a housing-side connecting portion that is provided in the housing and to which an upper portion of the support member is connected, and provided in the outer tub A tank-side connecting portion to which a lower portion of the supporting member is connected, and the upper portion of the supporting member and the housing-side connecting portion, and the upper portion is elastically connected to the housing-side connecting portion. The washing machine includes: an upper elastic body; and a lower elastic body that is interposed between the lower portion of the support member and the tank-side connecting portion and elastically connects the lower portion to the tank-side connecting portion. .

また、本発明は、前記上側弾性体は、一対設けられて、前記筐体側連結部を上下から挟み込み、前記支持部材の前記上部には、前記筐体側連結部を挟み込んだ一対の前記上側弾性体を上下から挟み込む上側挟込部が設けられることを特徴とする。   Further, according to the present invention, a pair of the upper elastic bodies are provided, the casing side connecting portion is sandwiched from above and below, and the upper portion of the support member is a pair of the upper elastic bodies sandwiching the casing side connecting portion. It is characterized in that an upper sandwiching portion is provided for sandwiching from above and below.

また、本発明は、前記下側弾性体は、一対設けられて、前記槽側連結部を上下から挟み込み、前記支持部材の前記下部には、前記槽側連結部を挟み込んだ一対の前記下側弾性体を上下から挟み込む下側挟込部が設けられることを特徴とする。   Further, according to the present invention, a pair of the lower elastic bodies are provided to sandwich the tank-side connecting portion from above and below, and the lower portion of the supporting member sandwiches the tank-side connecting portion. A lower sandwiching portion for sandwiching the elastic body from above and below is provided.

また、本発明は、前記槽側連結部は、前記洗濯槽の重心よりも上側に位置することを特徴とする。   Further, the present invention is characterized in that the tub side connecting portion is located above the center of gravity of the washing tub.

また、本発明は、前記支持部材が伸縮する際に、前記上部と前記下部とが互いに摺動し、前記上部および前記下部において互いに摺動する部分は、金属製であることを特徴とする。   Further, the present invention is characterized in that when the support member expands and contracts, the upper part and the lower part slide with each other, and the parts that slide with each other at the upper part and the lower part are made of metal.

また、本発明は、前記支持部材は、前記上部と前記下部とを上下に相対移動するように付勢する付勢部と、前記上部と前記下部との相対移動を減衰させる減衰部とを含み、前記付勢部および前記減衰部は、上下方向における前記支持部材の中間部に設けられることを特徴とする。   In the present invention, the support member includes an urging portion that urges the upper portion and the lower portion to move relative to each other up and down, and an attenuation portion that attenuates relative movement between the upper portion and the lower portion. The urging portion and the attenuating portion are provided in an intermediate portion of the support member in the vertical direction.

本発明によれば、洗濯機では、筐体から吊り下がって洗濯槽を弾性支持する棒状の支持部材において、上部が、上側弾性体を介して筐体側連結部に弾性的に連結され、下部が、下側弾性体を介して槽側連結部に弾性的に連結される。そのため、洗濯槽における内槽の高速回転時において、高速回転による振動によって支持部材を筐体側連結部および槽側連結部から離そうとする力が発生しても、この力は、上側弾性体や下側弾性体の弾性変形によって吸収される。これにより、支持部材が筐体側連結部および槽側連結部から離れることが抑制される。よって、支持部材が筐体側連結部および槽側連結部から離れることによる洗濯槽の異常振動を抑制できるので、この異常振動を原因とする騒音も抑制できる。   According to the present invention, in the washing machine, in the rod-like support member that is suspended from the housing and elastically supports the washing tub, the upper portion is elastically connected to the housing-side connecting portion via the upper elastic body, and the lower portion is And elastically connected to the tank side connecting portion via the lower elastic body. Therefore, even when a force for separating the support member from the housing side connection portion and the tank side connection portion is generated by vibration due to the high speed rotation during the high speed rotation of the inner tub in the washing tub, Absorbed by elastic deformation of the lower elastic body. Thereby, it is suppressed that a support member leaves | separates from a housing | casing side connection part and a tank side connection part. Therefore, since the abnormal vibration of the washing tub due to the support member being separated from the housing side connecting portion and the tub side connecting portion can be suppressed, noise caused by the abnormal vibration can also be suppressed.

また、本発明によれば、一対の上側弾性体が筐体側連結部を上下から挟み込んだ状態において、支持部材の上部に設けられた上側挟込部が、これらの上側弾性体を上下から挟み込んで筐体側連結部に固定する。これにより、支持部材の上部が筐体側連結部から離れることが一層抑制される。そのため、支持部材が筐体側連結部から離れることによる洗濯槽の異常振動を一層抑制できる。また、筐体側連結部を支点とする洗濯槽の振り子運動が上側弾性体によって減衰されるので、この振り子運動による洗濯槽の異常振動も抑制できる。   Further, according to the present invention, in a state where the pair of upper elastic bodies sandwich the housing side connecting portion from above and below, the upper sandwiching portion provided on the upper portion of the support member sandwiches these upper elastic bodies from above and below. Secure to the case side connection. Thereby, it is further suppressed that the upper part of the support member is separated from the housing side connection part. Therefore, the abnormal vibration of the washing tub due to the support member being separated from the housing side connecting portion can be further suppressed. Further, since the pendulum motion of the washing tub with the housing side connecting portion as a fulcrum is attenuated by the upper elastic body, abnormal vibration of the washing tub due to the pendulum motion can also be suppressed.

また、本発明によれば、一対の下側弾性体が槽側連結部を上下から挟み込んだ状態において、支持部材の下部に設けられた下側挟込部が、これらの下側弾性体を上下から挟み込んで槽側連結部に固定する。これにより、支持部材の下部が槽側連結部から離れることが一層抑制される。そのため、支持部材が槽側連結部から離れることによる洗濯槽の異常振動を一層抑制できる。また、槽側連結部を支点とする洗濯槽の振り子運動が下側弾性体によって減衰されるので、この振り子運動による洗濯槽の異常振動も抑制できる。   Further, according to the present invention, in a state where the pair of lower elastic bodies sandwich the tank-side connecting portion from above and below, the lower sandwiching portion provided at the lower portion of the support member moves the lower elastic bodies up and down. And fixed to the tank side connecting part. Thereby, it is further suppressed that the lower part of a support member leaves | separates from a tank side connection part. Therefore, the abnormal vibration of the washing tub due to the support member being separated from the tub side connecting portion can be further suppressed. Further, since the pendulum motion of the washing tub with the tub side connecting portion as a fulcrum is attenuated by the lower elastic body, abnormal vibration of the washing tub due to the pendulum motion can also be suppressed.

また、本発明によれば、支持部材の下部が連結される槽側連結部が、洗濯槽の重心よりも上側に位置するので、洗濯槽において重い部分は、支持部材の下部から下側へぶら下がった状態にある。この場合、洗濯物が洗濯槽の内槽内において上側へ偏って配置された状態において、洗濯槽において槽側連結部よりも上側の部分が槽側連結部を支点として振り子運動しようとしても、この振り子運動は、槽側連結部における下側弾性体によって減衰される。これにより、この振り子運動による異常振動を抑制できる。   In addition, according to the present invention, since the tub side connecting portion to which the lower portion of the support member is connected is located above the center of gravity of the washing tub, the heavy portion of the washing tub hangs downward from the lower portion of the support member. It is in the state. In this case, in a state where the laundry is biased upward in the inner tub of the washing tub, even if the upper portion of the laundry tub is more than the tub side connection portion, The pendulum motion is damped by the lower elastic body in the tank side connecting part. Thereby, the abnormal vibration by this pendulum movement can be suppressed.

また、本発明によれば、支持部材が洗濯槽を弾性支持するために伸縮する際に、支持部材では上部と下部とが互いに摺動するが、上部および下部において互いに摺動する部分は、金属製なので、摺動によって摩耗したり、横荷重によって変形したりしにくい。そのため、支持部材は、安定した状態で洗濯槽を弾性支持できるので、洗濯槽の異常振動を安定して抑制できる。   Further, according to the present invention, when the support member expands and contracts to elastically support the washing tub, the upper and lower portions of the support member slide with each other, but the upper and lower portions that slide with each other are made of metal. Since it is manufactured, it is difficult to be worn by sliding or to be deformed by lateral load. Therefore, since the supporting member can elastically support the washing tub in a stable state, abnormal vibration of the washing tub can be stably suppressed.

また、本発明によれば、付勢部および減衰部が上下方向における支持部材の中間部に設けられるので、付勢部および減衰部に邪魔されることなく、支持部材の上部を筐体側連結部に弾性的に連結でき、支持部材の下部を槽側連結部に弾性的に連結できる。   In addition, according to the present invention, since the urging portion and the attenuation portion are provided in the middle portion of the support member in the vertical direction, the upper portion of the support member is connected to the housing side connection portion without being obstructed by the urging portion and the attenuation portion. The lower part of the supporting member can be elastically connected to the tank side connecting part.

図1は、この発明の第1実施形態に係る洗濯機における要部を横から見た側面図である。FIG. 1 is a side view of a main part of a washing machine according to a first embodiment of the present invention as viewed from the side. 図2は、第1実施形態に係る洗濯機において支持部材の縦断面と支持部材の周囲の部分とを横から見た側面図である。FIG. 2 is a side view of a longitudinal section of the support member and a portion around the support member as viewed from the side in the washing machine according to the first embodiment. 図3は、比較例に係る洗濯機における要部を横から見た側面図である。FIG. 3 is a side view of the main part of the washing machine according to the comparative example viewed from the side. 図4は、図3における支持部材の要部の縦断面図である。FIG. 4 is a longitudinal sectional view of a main part of the support member in FIG. 図5は、第1実施形態と比較例とに関して、脱水工程中において内槽の回転に伴って洗濯槽に生じる振動と経過時間との関係を示すグラフである。FIG. 5 is a graph showing the relationship between the vibration generated in the washing tub along with the rotation of the inner tub during the dehydration process and the elapsed time for the first embodiment and the comparative example. 図6は、この発明の第2実施形態に係る洗濯機における要部を横から見た側面図である。FIG. 6: is the side view which looked at the principal part in the washing machine which concerns on 2nd Embodiment of this invention from the side. 図7は、第1実施形態と第2実施形態とに関して、脱水工程中において内槽の回転に伴って洗濯槽に生じる振動と経過時間との関係を示すグラフである。FIG. 7 is a graph showing the relationship between the vibration generated in the washing tub and the elapsed time with the rotation of the inner tub during the dehydration process in the first embodiment and the second embodiment. 図8は、この発明の第3実施形態に係る洗濯機において支持部材の縦断面と支持部材の周囲の部分とを横から見た側面図である。FIG. 8: is the side view which looked at the longitudinal cross-section of a supporting member and the surrounding part of a supporting member from the side in the washing machine which concerns on 3rd Embodiment of this invention. 図9は、この発明の第4実施形態に係る支持部材の要部の縦断面図である。FIG. 9 is a longitudinal sectional view of an essential part of a support member according to the fourth embodiment of the present invention.

以下には、図面を参照して、この発明の実施形態について具体的に説明する。図1は、この発明の第1実施形態に係る洗濯機1における要部を横から見た側面図である。図1における上下方向を洗濯機1の上下方向Zといい、上下方向Zに直交する方向を洗濯機1の横方向XYという。上下方向Zは、垂直方向でもあり、横方向XYは、水平方向でもある。上下方向Zのうち、上側を上側Z1といい、下側を下側Z2という。   Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a side view of a main part of the washing machine 1 according to the first embodiment of the present invention as viewed from the side. A vertical direction in FIG. 1 is referred to as a vertical direction Z of the washing machine 1, and a direction orthogonal to the vertical direction Z is referred to as a horizontal direction XY of the washing machine 1. The vertical direction Z is also the vertical direction, and the horizontal direction XY is also the horizontal direction. In the vertical direction Z, the upper side is referred to as the upper side Z1, and the lower side is referred to as the lower side Z2.

洗濯機1には、乾燥機能を含む洗濯乾燥機も含まれるが、以下では、乾燥機能が省略されて洗濯運転だけを実行する洗濯機を例に取って洗濯機1について説明する。洗濯運転には、洗い工程とすすぎ工程と脱水工程とが含まれる。洗濯機1は、その外殻を構成する筐体2を含む。筐体2内には、洗濯槽3と、モータ4と、支持部材5とが配置される。   The washing machine 1 includes a washing machine having a drying function. Hereinafter, the washing machine 1 will be described by taking a washing machine in which the drying function is omitted and only a washing operation is performed as an example. The washing operation includes a washing process, a rinsing process, and a dehydrating process. The washing machine 1 includes a housing 2 that constitutes an outer shell thereof. A washing tub 3, a motor 4, and a support member 5 are disposed in the housing 2.

筐体2は、金属製であり、略直方体のボックス状の全体形状を有する。筐体2の上面には、洗濯機1の内部に対して洗濯物を出し入れするための出入口2Aが形成される。筐体2の内部の上端部2Bにおいて筐体2の四隅に一致した4箇所には、筐体側連結部6が1つずつ形成される。それぞれの筐体側連結部6は、上下方向Zに一致した板厚方向を有する板状に形成される。   The casing 2 is made of metal and has a substantially rectangular parallelepiped box shape. On the upper surface of the housing 2, an entrance 2 </ b> A for taking in and out the laundry with respect to the inside of the washing machine 1 is formed. One case-side connecting portion 6 is formed at each of four locations that coincide with the four corners of the case 2 in the upper end 2 </ b> B inside the case 2. Each case-side connecting portion 6 is formed in a plate shape having a plate thickness direction coinciding with the vertical direction Z.

洗濯槽3は、外槽10と内槽11とを含む。図1では、外槽10および内槽11のそれぞれの縦断面が部分的に表れるように、洗濯槽3の一部が切り欠かれて図示される。外槽10は、例えば樹脂製であり、上下方向Zに延びる中心軸線Jを有する有底円筒状に形成される。洗い工程やすすぎ工程では、外槽10の内部に水が溜められる。以下では、中心軸線Jまわりの周方向を周方向Sといい、中心軸線Jを中心とする径方向を径方向Rという。周方向Sおよび径方向Rは、横方向XYに含まれる。径方向Rのうち、中心軸線Jから離れる方向を径方向外側R1といい、中心軸線Jに近づく方向を径方向内側R2という。   The washing tub 3 includes an outer tub 10 and an inner tub 11. In FIG. 1, a part of the washing tub 3 is cut away so that the longitudinal sections of the outer tub 10 and the inner tub 11 are partially shown. The outer tub 10 is made of, for example, resin, and is formed in a bottomed cylindrical shape having a central axis J extending in the vertical direction Z. In the washing process and the rinsing process, water is accumulated in the outer tub 10. Hereinafter, a circumferential direction around the central axis J is referred to as a circumferential direction S, and a radial direction around the central axis J is referred to as a radial direction R. The circumferential direction S and the radial direction R are included in the lateral direction XY. Of the radial direction R, a direction away from the central axis J is referred to as a radial outer side R1, and a direction approaching the central axis J is referred to as a radial inner side R2.

外槽10は、上下方向Zに沿って配置された略円筒状の円周壁12と、円周壁12の中空部分を下側Z2から塞ぐ円板状の底壁13とを含む。円周壁12には、その上端縁によって囲まれた開口12Aが形成される。開口12Aは、筐体2の出入口2Aの真下に位置し、円周壁12の中空部分を出入口2Aに対して連通させる。   The outer tub 10 includes a substantially cylindrical circumferential wall 12 disposed along the vertical direction Z, and a disk-shaped bottom wall 13 that closes a hollow portion of the circumferential wall 12 from the lower side Z2. The circumferential wall 12 is formed with an opening 12A surrounded by its upper edge. The opening 12A is located directly below the entrance / exit 2A of the housing 2 and allows the hollow portion of the circumferential wall 12 to communicate with the entrance / exit 2A.

円周壁12の外周面には、径方向外側R1に張り出して円周壁12を補強するリブ14が複数形成される。リブ14は、上下方向Zに沿って延びる縦リブ14Aと、周方向Sに沿って延びる横リブ14Bとを含む。円周壁12の外周面において筐体2の四隅に一致した周上4箇所には、例えば金属製の槽側連結部15が1つずつ設けられる。それぞれの槽側連結部15は、円周壁12の外周面に沿って延びる板状の固定部15Aと、上下方向Zに一致した板厚方向を有して固定部15Aの下端から径方向外側R1へ水平に張り出した張出部15Bとを一体的に含む。ボルト(図示せず)などによって固定部15Aが円周壁12に組み付けられることにより、槽側連結部15は、円周壁12に固定される。槽側連結部15において少なくとも張出部15Bは、洗濯槽3の重心Gよりも上側Z1に位置する。円周壁12と張出部15Bとは、一体形成されてもよい。   A plurality of ribs 14 are formed on the outer peripheral surface of the circumferential wall 12 so as to protrude outward in the radial direction R1 and reinforce the circumferential wall 12. The ribs 14 include vertical ribs 14 </ b> A extending along the vertical direction Z and horizontal ribs 14 </ b> B extending along the circumferential direction S. On the outer peripheral surface of the circumferential wall 12, for example, one metal tank side connecting portion 15 is provided one by one at four positions on the circumference that coincide with the four corners of the housing 2. Each tank side connecting portion 15 has a plate-like fixing portion 15A extending along the outer peripheral surface of the circumferential wall 12, and a plate thickness direction coinciding with the vertical direction Z, and is radially outward from the lower end of the fixing portion 15A. And a projecting portion 15B projecting horizontally. The tank-side connecting portion 15 is fixed to the circumferential wall 12 by assembling the fixing portion 15A to the circumferential wall 12 with a bolt (not shown) or the like. In the tub side connecting portion 15, at least the overhang portion 15 </ b> B is located on the upper side Z <b> 1 from the center of gravity G of the washing tub 3. The circumferential wall 12 and the overhang portion 15B may be integrally formed.

底壁13の下面には、下側Z2へ張り出して底壁13を補強する複数のリブ16や、外槽10に溜まった水を機外へ排出するための排水路17などが設けられる。   On the lower surface of the bottom wall 13, there are provided a plurality of ribs 16 that protrude to the lower side Z <b> 2 and reinforce the bottom wall 13, drainage channels 17 for discharging water accumulated in the outer tub 10 to the outside of the machine, and the like.

内槽11は、例えば金属製であり、外槽10よりも一回り小さい有底円筒状に形成され、外槽10内に同軸状で収容される。そのため、内槽11の中心軸線は、外槽10の中心軸線Jと一致する。内槽11は、内部に洗濯物を収容することができる。内槽11の上面には、外槽10の開口12Aに対して真下から連通する開口11Aが形成される。洗濯機1の使用者は、筐体2の出入口2Aと開口12Aと開口11Aとを介して、内槽11に対して洗濯物を出し入れする。内槽11には、貫通穴11Bが複数形成され、外槽10内の水は、貫通穴11Bを介して、外槽10と内槽11との間で行き来できる。そのため、外槽10内の水位と内槽11内の水位とは一致する。内槽11の底壁において中心軸線Jと一致する部分には、下側Z2へ突出した回転軸(図示せず)が設けられ、この回転軸は、外槽10の底壁13によって回転可能に支持される。そのため、内槽11は、中心軸線Jまわりに回転可能である。   The inner tank 11 is made of, for example, metal, is formed in a bottomed cylindrical shape that is slightly smaller than the outer tank 10, and is accommodated coaxially in the outer tank 10. Therefore, the central axis of the inner tub 11 coincides with the central axis J of the outer tub 10. The inner tub 11 can store laundry therein. On the upper surface of the inner tank 11, an opening 11A communicating with the opening 12A of the outer tank 10 from directly below is formed. A user of the washing machine 1 puts laundry in and out of the inner tub 11 through the entrance 2A, the opening 12A, and the opening 11A of the housing 2. A plurality of through holes 11B are formed in the inner tank 11, and the water in the outer tank 10 can go back and forth between the outer tank 10 and the inner tank 11 through the through holes 11B. Therefore, the water level in the outer tank 10 and the water level in the inner tank 11 coincide. A portion of the bottom wall of the inner tub 11 that coincides with the central axis J is provided with a rotating shaft (not shown) that protrudes downward Z2, and this rotating shaft can be rotated by the bottom wall 13 of the outer tub 10. Supported. Therefore, the inner tub 11 is rotatable around the central axis J.

内槽11の上端部には、中空の環状に形成されたバランスリング18が同軸状で取り付けられる。バランスリング18は、回転時における内槽11の振動を低減させて内槽11の回転バランスをとるための部品である。バランスリング18の内部の環状の空洞18Aには、内槽11の回転バランスをとるための塩水などの液体が流動自在に収容される。   A balance ring 18 formed in a hollow ring shape is coaxially attached to the upper end portion of the inner tank 11. The balance ring 18 is a component for reducing the vibration of the inner tub 11 during rotation and balancing the rotation of the inner tub 11. In the annular cavity 18A inside the balance ring 18, a liquid such as salt water for balancing the rotation of the inner tank 11 is accommodated in a freely flowable manner.

モータ4は、インバータモータなどの電動モータである。モータ4は、外槽10の底壁13に対して下側Z2から固定される。モータ4は、上側Z1へ突出する出力軸(図示せず)を含む。モータ4が出力軸から出力する駆動力は、内槽11の回転軸(図示せず)に伝達される。これにより、内槽11が回転する。特に、脱水工程では、洗濯物に遠心力を作用させて効果的に脱水を行うために、内槽11が高速回転する。なお、内槽11内には、洗い工程やすすぎ工程に洗濯物を撹拌するために回転するパルセータ(図示せず)が設けられ、モータ4の駆動力がパルセータに伝達されてもよい。   The motor 4 is an electric motor such as an inverter motor. The motor 4 is fixed to the bottom wall 13 of the outer tub 10 from the lower side Z2. The motor 4 includes an output shaft (not shown) protruding to the upper side Z1. The driving force output from the output shaft by the motor 4 is transmitted to a rotating shaft (not shown) of the inner tank 11. Thereby, the inner tank 11 rotates. In particular, in the dehydration step, the inner tub 11 rotates at high speed in order to effectively perform dehydration by applying centrifugal force to the laundry. In the inner tub 11, a pulsator (not shown) that rotates to stir the laundry in the washing process or the rinsing process may be provided, and the driving force of the motor 4 may be transmitted to the pulsator.

支持部材5は、棒状に形成された部材であって吊り棒とも呼ばれ、上下に長手になった状態で筐体2内に配置される。支持部材5は、垂直方向に沿って配置されてもよいし、垂直方向に対して若干傾斜して配置されてもよい。支持部材5は、4つ存在し、筐体2の四隅に1つずつ配置される。次に、図2を参照して支持部材5について説明する。図2では、図1の紙面左側に位置する1つの支持部材5およびその周辺部分の縦断面が図示されるとともに、この支持部材5の周囲における洗濯槽3の側面が簡略化して図示される。支持部材5に関し、洗濯機1には、例えば第1実施形態〜第4実施形態が存在する。以下では、第1実施形態〜第4実施形態の順に説明する。   The support member 5 is a member formed in a rod shape and is also called a hanging rod, and is disposed in the housing 2 in a state of being vertically long. The support member 5 may be disposed along the vertical direction, or may be disposed slightly inclined with respect to the vertical direction. There are four support members 5, and one support member 5 is arranged at each of the four corners of the housing 2. Next, the support member 5 will be described with reference to FIG. FIG. 2 shows a longitudinal section of one supporting member 5 located on the left side of FIG. 1 and its peripheral portion, and also shows a simplified side view of the washing tub 3 around the supporting member 5. Regarding the support member 5, the washing machine 1 includes, for example, first to fourth embodiments. Below, it demonstrates in order of 1st Embodiment-4th Embodiment.

第1実施形態に係る支持部材5は、オイルダンパであり、上部20と、下部21と、付勢部22と、減衰部23とを含む。支持部材5では、後述するシール部材36以外のほとんどの部分が金属製である。上部20は、シャフト25と、ピストン26と、上側挟込部27と、上側締結部材28とを含む。シャフト25は、上下方向Zに細長く延びる円柱状に形成される。シャフト25の上端部の外周面には、この外周面の径方向における外側へ張り出したフランジ状の第1位置決め部25Aが形成される。シャフト25の上端部において第1位置決め部25Aよりも上側の部分は、第1位置決め部25Aから上側Z1へ延びる挿入部25Bと、第1位置決め部25Aよりも外径が小さくて第1位置決め部25Aから上側Z1へ延びる先端部25Cとを含む。挿入部25Bと先端部25Cとの間の段差は、第2位置決め部25Dを構成する。第1位置決め部25Aが、第2位置決め部25Dのように段差によって構成されてもよいし、第2位置決め部25Dが、第1位置決め部25Aのようにフランジ状に形成されてもよい。   The support member 5 according to the first embodiment is an oil damper, and includes an upper portion 20, a lower portion 21, an urging portion 22, and an attenuation portion 23. In the support member 5, most parts other than the seal member 36 to be described later are made of metal. The upper part 20 includes a shaft 25, a piston 26, an upper clamping part 27, and an upper fastening member 28. The shaft 25 is formed in a columnar shape extending in the vertical direction Z. On the outer peripheral surface of the upper end portion of the shaft 25, a flange-shaped first positioning portion 25A projecting outward in the radial direction of the outer peripheral surface is formed. The upper portion of the shaft 25 above the first positioning portion 25A has an insertion portion 25B extending from the first positioning portion 25A to the upper side Z1 and an outer diameter smaller than that of the first positioning portion 25A, and the first positioning portion 25A. 25C extending from the top to the upper side Z1. The step between the insertion portion 25B and the distal end portion 25C constitutes a second positioning portion 25D. 25 A of 1st positioning parts may be comprised by a level | step difference like 2nd positioning part 25D, and 2nd positioning part 25D may be formed in a flange shape like 25 A of 1st positioning parts.

ピストン26は、上下方向Zに一致した板厚方向を有する円板状に形成される。ピストン26の中心には、ピストン26を上下方向Zに貫通した挿入穴26Aが形成される。ピストン26の上面には、下側Z2へ凹んで挿入穴26Aに連通した凹部26Bが形成される。ピストン26において挿入穴26Aから離れた位置には、凹部26Bの底面から下側Z2に延びてピストン26を上下方向Zに貫通した貫通穴26Cが形成される。ピストン26の下面には、挿入穴26Aを取り囲んで下側Z2に突出した円筒状の突出部26Dが形成される。シャフト25の下端部は、挿入穴26Aに挿入され、ねじ締結などによってピストン26に固定される。   The piston 26 is formed in a disc shape having a plate thickness direction coinciding with the vertical direction Z. An insertion hole 26 </ b> A that penetrates the piston 26 in the vertical direction Z is formed at the center of the piston 26. On the upper surface of the piston 26, a recess 26B that is recessed toward the lower side Z2 and communicates with the insertion hole 26A is formed. A through hole 26 </ b> C that extends from the bottom surface of the recess 26 </ b> B to the lower side Z <b> 2 and penetrates the piston 26 in the vertical direction Z is formed at a position away from the insertion hole 26 </ b> A in the piston 26. On the lower surface of the piston 26, a cylindrical protruding portion 26D is formed that surrounds the insertion hole 26A and protrudes downward Z2. The lower end portion of the shaft 25 is inserted into the insertion hole 26A and fixed to the piston 26 by screw fastening or the like.

上側挟込部27は、例えば円環状のワッシャであって、上下方向Zに並んで一対設けられる。一対の上側挟込部27のうち、下側Z2に位置する第1上側挟込部27Aは、シャフト25の挿入部25Bの下端を取り囲んで、第1位置決め部25Aに上側Z1から引っ掛かった状態にある。これにより、第1上側挟込部27Aは、上下方向Zにおいて位置決めされた状態にある。一対の上側挟込部27のうち、上側Z1に位置する第2上側挟込部27Bは、シャフト25の先端部25Cの下端を取り囲んで、挿入部25Bと先端部25Cとの境界における第2位置決め部25Dに上側Z1から引っ掛かった状態にある。上側締結部材28は、例えばナットであって、先端部25Cにねじ締結される。第2上側挟込部27Bは、第2位置決め部25Dと上側締結部材28との間に挟まれることによって、上下方向Zにおいて位置決めされた状態にある。   The upper sandwiching portions 27 are, for example, annular washers, and are provided in a pair in the vertical direction Z. Of the pair of upper sandwiching portions 27, the first upper sandwiching portion 27A located on the lower Z2 surrounds the lower end of the insertion portion 25B of the shaft 25 and is in a state of being hooked on the first positioning portion 25A from the upper Z1. is there. Thereby, the first upper sandwiching portion 27A is positioned in the vertical direction Z. Of the pair of upper sandwiching portions 27, the second upper sandwiching portion 27B located on the upper side Z1 surrounds the lower end of the distal end portion 25C of the shaft 25, and is the second positioning at the boundary between the insertion portion 25B and the distal end portion 25C. The part 25D is in a state of being caught from the upper side Z1. The upper fastening member 28 is a nut, for example, and is screwed to the distal end portion 25C. The second upper sandwiching portion 27B is positioned in the vertical direction Z by being sandwiched between the second positioning portion 25D and the upper fastening member 28.

下部21は、筒部30と、シャフト31と、下側挟込部32と、下側締結部材33と、キャップ34と、スリーブ35と、シール部材36とを含む。筒部30は、上下方向Zに延びる円筒状に形成される。筒部30の下端には下側開口部30Aが形成され、筒部30の上端には上側開口部30Bが形成される。上部20のシャフト25において第1位置決め部25Aよりも下側Z2の部分と、シャフト25の下端部に固定されたピストン26とは、上側開口部30Bを通って筒部30内に収容された状態にある。この状態において、上部20と下部21とは上下方向Zにおいて互いに相対移動可能であり、この相対移動に応じて支持部材5の全体が上下に伸縮する。筒部30の内径とピストン26の外径とがほぼ同じであるので、支持部材5が伸縮する際に、ピストン26の外周面と筒部30の内周面とが互いに摺動する。   The lower part 21 includes a cylindrical part 30, a shaft 31, a lower clamping part 32, a lower fastening member 33, a cap 34, a sleeve 35, and a seal member 36. The cylindrical portion 30 is formed in a cylindrical shape that extends in the vertical direction Z. A lower opening 30 </ b> A is formed at the lower end of the cylindrical portion 30, and an upper opening 30 </ b> B is formed at the upper end of the cylindrical portion 30. In the shaft 25 of the upper portion 20, the portion below the first positioning portion 25 </ b> A Z <b> 2 and the piston 26 fixed to the lower end portion of the shaft 25 are accommodated in the cylindrical portion 30 through the upper opening 30 </ b> B. It is in. In this state, the upper portion 20 and the lower portion 21 can move relative to each other in the vertical direction Z, and the entire support member 5 expands and contracts in accordance with this relative movement. Since the inner diameter of the cylindrical portion 30 and the outer diameter of the piston 26 are substantially the same, the outer peripheral surface of the piston 26 and the inner peripheral surface of the cylindrical portion 30 slide relative to each other when the support member 5 expands and contracts.

シャフト31は、上下方向Zに延びる円柱状に形成される。シャフト31は、その上端に位置する閉塞部31Aと、閉塞部31Aから下側Z2へ延びる途中部31Bと、途中部31Bから下側Z2へ延びる挿入部31Cと、挿入部31Cから下側Z2へ延びる先端部31Dとを含む。シャフト31の外径は、閉塞部31A、途中部31B、挿入部31Cおよび先端部31Dの順に、下側Z2へ向けて一段ずつ小さい。   The shaft 31 is formed in a columnar shape extending in the vertical direction Z. The shaft 31 has a closing portion 31A located at the upper end thereof, a middle portion 31B extending from the closing portion 31A to the lower side Z2, an insertion portion 31C extending from the middle portion 31B to the lower side Z2, and the insertion portion 31C to the lower side Z2. And a distal end portion 31D that extends. The outer diameter of the shaft 31 is smaller step by step toward the lower side Z2 in the order of the closing part 31A, the middle part 31B, the insertion part 31C, and the tip part 31D.

閉塞部31Aは、下側開口部30Aに下側Z2から挿入され、ねじ締結などによって筒部30の内周面に固定される。閉塞部31Aの下端の外周面には、この外周面の径方向における外側へ張り出したフランジ状の係合部31Eが形成される。係合部31Eは、筒部30の下端における下側開口部30Aの周縁部に下側Z2から係合する。下側開口部30Aは、閉塞部31Aによって塞がれた状態にある。途中部31Bと挿入部31Cとの間の段差は、第1位置決め部31Fを構成する。挿入部31Cと先端部31Dとの間の段差は、第2位置決め部31Gを構成する。第1位置決め部31Fおよび第2位置決め部31Gのそれぞれが、上部20の第1位置決め部25Aのようにフランジ状に形成されてもよい。   The closing portion 31A is inserted into the lower opening 30A from the lower side Z2, and is fixed to the inner peripheral surface of the cylindrical portion 30 by screw fastening or the like. A flange-like engagement portion 31E is formed on the outer peripheral surface at the lower end of the closing portion 31A. The flange-shaped engagement portion 31E extends outward in the radial direction of the outer peripheral surface. The engaging portion 31E engages with the peripheral edge portion of the lower opening 30A at the lower end of the cylindrical portion 30 from the lower side Z2. The lower opening 30A is closed by the closing portion 31A. A step between the middle part 31B and the insertion part 31C constitutes a first positioning part 31F. The step between the insertion portion 31C and the tip portion 31D constitutes the second positioning portion 31G. Each of the first positioning portion 31F and the second positioning portion 31G may be formed in a flange shape like the first positioning portion 25A of the upper portion 20.

下側挟込部32は、例えば円環状のワッシャであって、上下方向Zに並んで一対設けられる。一対の下側挟込部32のうち、上側Z1に位置する第1下側挟込部32Aは、シャフト31の挿入部31Cの上端を取り囲んで、第1位置決め部31Fに下側Z2から引っ掛かった状態にある。これにより、第1下側挟込部32Aは、上下方向Zにおいて位置決めされた状態にある。一対の下側挟込部32のうち、下側Z2に位置する第2下側挟込部32Bは、シャフト25の先端部31Dの上端を取り囲んで、第2位置決め部31Gに下側Z2から引っ掛かった状態にある。下側締結部材33は、例えばナットであって、先端部31Dにねじ締結される。第2下側挟込部32Bは、第2位置決め部31Gと下側締結部材33との間に挟まれることによって、上下方向Zにおいて位置決めされた状態にある。   The lower sandwiching portions 32 are, for example, annular washers, and are provided in a pair in the vertical direction Z. Of the pair of lower sandwiching portions 32, the first lower sandwiching portion 32A located on the upper side Z1 surrounds the upper end of the insertion portion 31C of the shaft 31, and is caught by the first positioning portion 31F from the lower side Z2. Is in a state. Thereby, the first lower sandwiching portion 32A is positioned in the vertical direction Z. Of the pair of lower sandwiching portions 32, the second lower sandwiching portion 32B located on the lower side Z2 surrounds the upper end of the distal end portion 31D of the shaft 25 and is caught by the second positioning portion 31G from the lower side Z2. It is in the state. The lower fastening member 33 is a nut, for example, and is screwed to the tip portion 31D. The second lower sandwiching portion 32B is positioned in the vertical direction Z by being sandwiched between the second positioning portion 31G and the lower fastening member 33.

キャップ34は、上下方向Zに一致した板厚方向を有する円板状の閉塞部34Aと、閉塞部34Aよりも小さい外径を有する円筒状に形成されて閉塞部34Aの下面から下側Z2に延びる挿入部34Bとを一体的に含む。閉塞部34Aは、筒部30の上端における上側開口部30Bの周縁部に上側Z1から係合して、上側開口部30Bを上側Z1から塞いだ状態にある。閉塞部34Aの中心には、閉塞部34Aを上下方向Zにおいて貫通した貫通穴34Cが形成される。上部20のシャフト25において第1位置決め部25A側の上側部分が、貫通穴34Cを通って上側Z1へはみ出して配置される。挿入部34Bは、上側開口部30Bから筒部30内に挿入されて筒部30内のシャフト25を非接触で取り囲んだ状態にあり、ねじ締結などによって筒部30の内周面に固定される。   The cap 34 is formed in a disc-shaped closing portion 34A having a plate thickness direction coinciding with the up-down direction Z, and a cylindrical shape having an outer diameter smaller than the closing portion 34A, and extends from the lower surface of the closing portion 34A to the lower side Z2. An extending insertion portion 34B is integrally included. The blocking portion 34A is engaged with the peripheral edge portion of the upper opening 30B at the upper end of the cylindrical portion 30 from the upper side Z1, and closes the upper opening 30B from the upper side Z1. A through hole 34C that penetrates the blocking portion 34A in the vertical direction Z is formed at the center of the blocking portion 34A. The upper portion on the first positioning portion 25A side of the shaft 25 of the upper portion 20 is disposed so as to protrude through the through hole 34C to the upper side Z1. The insertion portion 34B is inserted into the cylindrical portion 30 from the upper opening 30B and surrounds the shaft 25 in the cylindrical portion 30 in a non-contact manner, and is fixed to the inner peripheral surface of the cylindrical portion 30 by screw fastening or the like. .

スリーブ35は、円筒状に形成され、筒部30の内部空間の上端部に配置され、筒部30内のシャフト25を取り囲んでスライド可能に支持した状態にある。スリーブ35は、その略下半分をなす大径部35Aと、その略上半分をなして大径部35Aよりも外径が小さい小径部35Bとを含む。大径部35Aは、筒部30の内周面においてキャップ34の挿入部34Bよりも下側Z2の部分に対して内嵌され、小径部35Bは、挿入部34Bに対して内嵌される。スリーブ35は、ねじ締結などによって筒部30およびキャップ34の少なくともいずれかに固定された状態にある。スリーブ35は、単独で存在せずに、筒部30またはキャップ34に一体形成されてもよい。大径部35Aの下面には、シャフト25を取り囲んで上側Z1へ凹んだ環状の凹部35Cが形成される。   The sleeve 35 is formed in a cylindrical shape, is disposed at the upper end portion of the internal space of the cylindrical portion 30, and surrounds the shaft 25 in the cylindrical portion 30 and is slidably supported. The sleeve 35 includes a large-diameter portion 35A that forms a substantially lower half thereof, and a small-diameter portion 35B that forms a substantially upper half thereof and has an outer diameter smaller than that of the large-diameter portion 35A. The large-diameter portion 35A is internally fitted to a portion of the inner circumferential surface of the cylindrical portion 30 that is lower than the insertion portion 34B of the cap 34, and the small-diameter portion 35B is internally fitted to the insertion portion 34B. The sleeve 35 is fixed to at least one of the cylindrical portion 30 and the cap 34 by screw fastening or the like. The sleeve 35 may be integrally formed with the cylindrical portion 30 or the cap 34 without being present alone. An annular recess 35C that surrounds the shaft 25 and is recessed toward the upper side Z1 is formed on the lower surface of the large-diameter portion 35A.

筒部30の内部空間の上端部には、キャップ34の閉塞部34Aと小径部35Bとによって上下方向Zから挟まれてシャフト25と挿入部34Bとによって横方向XYから挟まれた環状の空間30Cが存在する。シール部材36は、いわゆるオイルシールであってゴム製であり、空間30Cとほぼ同じ大きさの環状に形成される。シール部材36は、空間30Cに配置され、シャフト25の外周面と挿入部34Bの内周面とに密着した状態にある。   An annular space 30C sandwiched from the vertical direction Z by the closing portion 34A and the small-diameter portion 35B of the cap 34 and the annular space 30C sandwiched from the lateral direction XY by the shaft 25 and the insertion portion 34B is disposed at the upper end portion of the internal space of the cylindrical portion 30. Exists. The seal member 36 is a so-called oil seal and is made of rubber, and is formed in an annular shape having substantially the same size as the space 30C. The seal member 36 is disposed in the space 30C and is in close contact with the outer peripheral surface of the shaft 25 and the inner peripheral surface of the insertion portion 34B.

付勢部22は、コイルばねであって、筒部30内に配置され、シャフト25を取り込みながら上下方向Zに延びる。付勢部22の下端部22Aは、ピストン26の上面の凹部26Bに受け入れられ、付勢部22の上端部22Bは、スリーブ35の下面の凹部35Cに受け入れられる。付勢部22は、ピストン26とスリーブ35とによって上下方向Zから常に圧縮された状態にあり、伸びようとすることによって、ピストン26を下側Z2に付勢し、スリーブ35を上側Z1に付勢する。これにより、ピストン26を含む上部20の全体が下部21に対して下側Z2に相対移動するように付勢され、スリーブ35を含む下部21の全体が上部20に対して上側Z1に相対移動するように付勢される。そのため、支持部材5の全体が、上下方向Zにおいて弾性的に収縮するように常に付勢された状態にある。   The urging portion 22 is a coil spring and is disposed in the cylindrical portion 30 and extends in the vertical direction Z while taking in the shaft 25. The lower end portion 22 </ b> A of the biasing portion 22 is received in the recess portion 26 </ b> B on the upper surface of the piston 26, and the upper end portion 22 </ b> B of the biasing portion 22 is received in the recess portion 35 </ b> C on the lower surface of the sleeve 35. The urging portion 22 is always compressed from the up-down direction Z by the piston 26 and the sleeve 35, and urges the piston 26 to the lower side Z2 and tries to extend the sleeve 35 to the upper side Z1. Rush. As a result, the entire upper portion 20 including the piston 26 is biased so as to move relative to the lower side Z2 relative to the lower portion 21, and the entire lower portion 21 including the sleeve 35 moves relative to the upper side Z1 relative to the upper portion 20. Energized as follows. Therefore, the entire support member 5 is always urged so as to elastically contract in the vertical direction Z.

減衰部23に関連して、筒部30の内部空間は、筒部30内に配置されたピストン26によって、ピストン26よりも上側Z1の上側領域30Dと、ピストン26よりも下側Z2の下側領域30Eとに仕切られた状態にある。上側領域30Dと下側領域30Eとは、ピストン26の貫通穴26Cを介して連通した状態にある。上側領域30Dおよび下側領域30Eには、オイルおよび空気が収容される。筒部30の内部空間は、シャフト31の閉塞部31Aとキャップ34の閉塞部34Aとによって上下方向Zの両側から塞がれた状態にあり、閉塞部34Aの貫通穴34Cの周囲にはシール部材36が配置される。そのため、筒部30内のオイルが貫通穴34Cから外に漏れ出すことが防止される。ピストン26と、上側領域30Dと、下側領域30Eと、これらの領域内のオイルとが、減衰部23を構成する。支持部材5の伸縮のために上部20と下部21とが相対移動すると、筒部30内でピストン26が移動することによって、オイルがピストン26の貫通穴26Cを通って上側領域30Dと下側領域30Eとの間で行き来する。その際にピストン26に生じる抵抗によって、上部20と下部21との相対移動が減衰される。   In relation to the damping part 23, the internal space of the cylinder part 30 is divided into an upper area 30 </ b> D on the upper side Z <b> 1 from the piston 26 and a lower side of the lower side Z <b> 2 by the piston 26 arranged in the cylinder part 30. It is in a state of being partitioned into the region 30E. The upper region 30D and the lower region 30E are in communication with each other through the through hole 26C of the piston 26. Oil and air are accommodated in the upper region 30D and the lower region 30E. The internal space of the cylindrical portion 30 is closed from both sides in the vertical direction Z by the closed portion 31A of the shaft 31 and the closed portion 34A of the cap 34, and a sealing member is provided around the through hole 34C of the closed portion 34A. 36 is arranged. Therefore, the oil in the cylinder part 30 is prevented from leaking out from the through hole 34C. The piston 26, the upper region 30D, the lower region 30E, and the oil in these regions constitute the damping part 23. When the upper portion 20 and the lower portion 21 move relative to each other for expansion and contraction of the support member 5, the piston 26 moves in the cylindrical portion 30, so that oil passes through the through hole 26 </ b> C of the piston 26 and the upper region 30 </ b> D and the lower region. Go back and forth with 30E. The relative movement between the upper part 20 and the lower part 21 is attenuated by the resistance generated in the piston 26 at that time.

支持部材5では、上部20のシャフト25における上側部分が、付勢部22および減衰部23を収めた筒部30から上側Z1へ突出し、下部21のシャフト31における下側部分が、筒部30から下側Z2へ突出して配置される。そのため、付勢部22および減衰部23は、上下方向Zにおける支持部材5の中間部に設けられる。   In the support member 5, the upper portion of the shaft 25 of the upper portion 20 protrudes from the cylindrical portion 30 containing the biasing portion 22 and the attenuation portion 23 to the upper side Z <b> 1, and the lower portion of the shaft 31 of the lower portion 21 extends from the cylindrical portion 30. It is arranged to project to the lower side Z2. Therefore, the urging portion 22 and the attenuating portion 23 are provided at an intermediate portion of the support member 5 in the vertical direction Z.

支持部材5に関し、洗濯機1は、ゴムなどの弾性部材によって構成された円環状の上側弾性体40および下側弾性体41を含む。上側弾性体40は、支持部材5の上部20を筐体側連結部6に連結するためのものであり、下側弾性体41は、支持部材5の下部21を槽側連結部15に連結するためのものである。上側弾性体40および下側弾性体41のそれぞれは、一対ずつ設けられる。   With respect to the support member 5, the washing machine 1 includes an annular upper elastic body 40 and a lower elastic body 41 made of an elastic member such as rubber. The upper elastic body 40 is for connecting the upper part 20 of the support member 5 to the housing side connection part 6, and the lower elastic body 41 is for connecting the lower part 21 of the support member 5 to the tank side connection part 15. belongs to. Each of the upper elastic body 40 and the lower elastic body 41 is provided in pairs.

一対の上側弾性体40は、第1上側弾性体40Aと、第1上側弾性体40Aよりも上下方向Zに厚くて第1上側弾性体40Aの上側Z1に配置される第2上側弾性体40Bとを含む。第1上側弾性体40Aの中心には、第1上側弾性体40Aを上下方向Zに貫通した貫通穴40Cが形成される。第1上側弾性体40Aの上面には、貫通穴40Cを取り囲んで下側Z2へ凹んだ環状の凹部40Dと、上側Z1へ突出した凸部40Eとが形成される。凸部40Eは、凹部40Dを取り囲んだ環状に形成されてもよいし、複数存在して環状に並んで配置されてもよい。第2上側弾性体40Bの中心には、第2上側弾性体40Bを上下方向Zに貫通した貫通穴40Fが形成される。第2上側弾性体40Bの下面には、貫通穴40Fを取り囲んで下側Z2へ突出した円筒状の突出部40Gと、下側Z2へ突出した凸部40Hとが形成される。凸部40Hは、突出部40Gを取り囲んだ環状に形成されてもよいし、複数存在して環状に並んで配置されてもよい。   The pair of upper elastic bodies 40 includes a first upper elastic body 40A and a second upper elastic body 40B that is thicker than the first upper elastic body 40A in the vertical direction Z and is disposed on the upper side Z1 of the first upper elastic body 40A. including. At the center of the first upper elastic body 40A, a through hole 40C that penetrates the first upper elastic body 40A in the vertical direction Z is formed. On the upper surface of the first upper elastic body 40A, an annular recess 40D that surrounds the through hole 40C and is recessed toward the lower side Z2, and a protrusion 40E that protrudes toward the upper side Z1 are formed. The convex portion 40E may be formed in an annular shape surrounding the concave portion 40D, or a plurality of convex portions 40E may be arranged side by side in an annular shape. A through hole 40F that penetrates the second upper elastic body 40B in the vertical direction Z is formed at the center of the second upper elastic body 40B. On the lower surface of the second upper elastic body 40B, there are formed a cylindrical protrusion 40G that surrounds the through hole 40F and protrudes downward Z2, and a protrusion 40H that protrudes downward Z2. The convex portion 40H may be formed in an annular shape surrounding the protruding portion 40G, or a plurality of convex portions 40H may be arranged side by side in an annular shape.

一対の下側弾性体41は、第1下側弾性体41Aと、第1下側弾性体41Aよりも上下方向Zに厚くて第1下側弾性体41Aの下側Z2に配置される第2下側弾性体41Bとを含む。第1下側弾性体41Aの中心には、第1下側弾性体41Aを上下方向Zに貫通した貫通穴41Cが形成される。第1下側弾性体41Aの下面には、貫通穴41Cを取り囲んで上側Z1へ凹んだ環状の凹部41Dと、下側Z2へ突出した凸部41Eとが形成される。凸部41Eは、凹部41Dを取り囲んだ環状に形成されてもよいし、複数存在して環状に並んで配置されてもよい。第2下側弾性体41Bの中心には、第2下側弾性体41Bを上下方向Zに貫通した貫通穴41Fが形成される。第2下側弾性体41Bの上面には、貫通穴41Fを取り囲んで上側Z1へ突出した円筒状の突出部41Gと、上側Z1へ突出した凸部41Hとが形成される。凸部41Hは、突出部41Gを取り囲んだ環状に形成されてもよいし、複数存在して環状に並んで配置されてもよい。   The pair of lower elastic bodies 41 includes a first lower elastic body 41A and a second lower elastic body 41A that is thicker than the first lower elastic body 41A in the vertical direction Z and is disposed on the lower side Z2 of the first lower elastic body 41A. A lower elastic body 41B. A through hole 41C that penetrates the first lower elastic body 41A in the vertical direction Z is formed at the center of the first lower elastic body 41A. On the lower surface of the first lower elastic body 41A, an annular concave portion 41D that surrounds the through hole 41C and is recessed toward the upper side Z1, and a convex portion 41E that protrudes toward the lower side Z2 are formed. The convex portion 41E may be formed in an annular shape surrounding the concave portion 41D, or a plurality of the convex portions 41E may be arranged side by side in an annular shape. A through hole 41F that penetrates the second lower elastic body 41B in the vertical direction Z is formed at the center of the second lower elastic body 41B. On the upper surface of the second lower elastic body 41B, there are formed a cylindrical protruding portion 41G that surrounds the through hole 41F and protrudes to the upper side Z1, and a convex portion 41H that protrudes to the upper side Z1. The convex portions 41H may be formed in an annular shape surrounding the protruding portion 41G, or a plurality of the convex portions 41H may be arranged side by side in an annular shape.

第1上側弾性体40Aと第1下側弾性体41Aとは、共通の部品であって、上下の向きを変えることで、第1上側弾性体40Aを第1下側弾性体41Aとして使用でき、第1下側弾性体41Aを第1上側弾性体40Aとして使用できてもよい。同様に、第2上側弾性体40Bと第2下側弾性体41Bとが共通の部品であってもよい。   The first upper elastic body 40A and the first lower elastic body 41A are common parts, and the first upper elastic body 40A can be used as the first lower elastic body 41A by changing the vertical direction. The first lower elastic body 41A may be used as the first upper elastic body 40A. Similarly, the second upper elastic body 40B and the second lower elastic body 41B may be a common component.

各筐体側連結部6には、筐体側連結部6を上下方向Zに貫通した貫通穴6Aが形成される。貫通穴6Aには、対応する支持部材5の上部20のシャフト25の挿入部25Bが下側Z2から挿入され、上部20の一対の上側挟込部27が、上下方向Zにおける筐体側連結部6の両側に配置される。一対の上側弾性体40は、シャフト25の挿入部25Bを取り囲んだ状態で、筐体側連結部6における貫通穴6Aの周囲の部分を上下から挟み込むように取り付けられる。   Each casing-side connecting portion 6 is formed with a through hole 6A that penetrates the casing-side connecting portion 6 in the vertical direction Z. The insertion part 25B of the shaft 25 of the upper part 20 of the corresponding support member 5 is inserted into the through hole 6A from the lower side Z2, and the pair of upper sandwiching parts 27 of the upper part 20 are connected to the housing side connection part 6 in the vertical direction Z. Arranged on both sides. The pair of upper elastic bodies 40 are attached so as to sandwich a portion around the through hole 6A in the housing side connecting portion 6 from above and below in a state of surrounding the insertion portion 25B of the shaft 25.

具体的に、第1上側弾性体40Aでは、下面が上部20の第1上側挟込部27Aに上側Z1から接触し、挿入部25Bが貫通穴40Cに挿入され、第1上側弾性体40Aの上面の凸部40Eが、筐体側連結部6に下側Z2から接触した状態にある。第2上側弾性体40Bでは、上面が上部20の第2上側挟込部27Bに下側Z2から接触し、挿入部25Bが貫通穴40Fに挿入され、第2上側弾性体40Bの下面の突出部40Gが貫通穴6Aに挿入され、第2上側弾性体40Bの下面の凸部40Hが、筐体側連結部6に上側Z1から接触した状態にある。突出部40Gが貫通穴6Aに挿入されることによって、第2上側弾性体40Bが横方向XYにおいて位置決めされる。第1上側挟込部27Aの外周部27Cは、上側Z1へ折り曲げられ、第1上側弾性体40Aを取り囲むことによって横方向XYにおいて位置決めする。   Specifically, in the first upper elastic body 40A, the lower surface contacts the first upper sandwiching portion 27A of the upper portion 20 from the upper side Z1, the insertion portion 25B is inserted into the through hole 40C, and the upper surface of the first upper elastic body 40A. The convex portion 40E is in contact with the housing side connecting portion 6 from the lower side Z2. In the second upper elastic body 40B, the upper surface comes into contact with the second upper sandwiching portion 27B of the upper portion 20 from the lower side Z2, the insertion portion 25B is inserted into the through hole 40F, and the protruding portion on the lower surface of the second upper elastic body 40B 40G is inserted into the through hole 6A, and the convex portion 40H on the lower surface of the second upper elastic body 40B is in contact with the housing side connecting portion 6 from the upper side Z1. By inserting the protruding portion 40G into the through hole 6A, the second upper elastic body 40B is positioned in the lateral direction XY. The outer peripheral portion 27C of the first upper sandwiching portion 27A is bent toward the upper side Z1 and positioned in the lateral direction XY by surrounding the first upper elastic body 40A.

このように筐体側連結部6を挟み込んだ一対の上側弾性体40は、第1上側挟込部27Aおよび第2上側挟込部27Bという一対の上側挟込部27によって上下から挟み込まれて圧縮された状態にある。圧縮された各上側弾性体40は、上部20の上側挟込部27と筐体側連結部6との間に介在し、上部20を筐体側連結部6に弾性的に連結した状態にある。付勢部22および減衰部23が上下方向Zにおける支持部材5の中間部に設けられるので、付勢部22および減衰部23に邪魔されることなく、支持部材5の上部20を筐体側連結部6に弾性的に連結できる。   The pair of upper elastic bodies 40 sandwiching the casing-side connecting portion 6 in this manner is sandwiched and compressed from above and below by the pair of upper sandwiching portions 27 called the first upper sandwiching portion 27A and the second upper sandwiching portion 27B. It is in the state. Each of the compressed upper elastic bodies 40 is interposed between the upper sandwiching portion 27 of the upper portion 20 and the housing side connecting portion 6, and is in a state in which the upper portion 20 is elastically connected to the housing side connecting portion 6. Since the urging portion 22 and the attenuation portion 23 are provided in the middle portion of the support member 5 in the vertical direction Z, the upper portion 20 of the support member 5 is connected to the housing side connecting portion without being obstructed by the urging portion 22 and the attenuation portion 23. 6 can be elastically connected.

上下方向Zにおいて収縮するように付勢された支持部材5では、一対の上側弾性体40のうち、上側Z1に位置する第2上側弾性体40Bが、第2上側挟込部27Bによって筐体側連結部6へ向けて強く押さえつけられるので、第1上側弾性体40Aよりも強く圧縮された状態にある。圧縮された第1上側弾性体40Aの上面では、凸部40Eが潰れて当該上面の全体が筐体側連結部6に圧接してもよく、圧縮された第2上側弾性体40Bの下面では、凸部40Hが潰れて当該下面の全体が筐体側連結部6に圧接してもよい。この場合には、第2上側弾性体40Bの突出部40Gが下側Z2へずれて第1上側弾性体40Aの上面の凹部40Dに嵌まり込んでもよい。   In the support member 5 biased to contract in the vertical direction Z, the second upper elastic body 40B located on the upper side Z1 of the pair of upper elastic bodies 40 is connected to the housing side by the second upper sandwiching portion 27B. Since it is strongly pressed toward the portion 6, it is in a state of being more strongly compressed than the first upper elastic body 40A. On the upper surface of the compressed first upper elastic body 40A, the convex portion 40E may be crushed and the entire upper surface may be in pressure contact with the housing side connecting portion 6. On the lower surface of the compressed second upper elastic body 40B, the convex portion The portion 40H may be crushed and the entire lower surface may be in pressure contact with the housing side connecting portion 6. In this case, the protrusion 40G of the second upper elastic body 40B may be shifted to the lower side Z2 and fit into the recess 40D on the upper surface of the first upper elastic body 40A.

槽側連結部15には、槽側連結部15の張出部15Bを上下方向Zに貫通した貫通穴15Cが形成される。貫通穴15Cには、対応する支持部材5の下部21のシャフト31の挿入部31Cが上側Z1から挿入され、下部21の一対の下側挟込部32が、上下方向Zにおける張出部15Bの両側に配置される。一対の下側弾性体41は、シャフト31の挿入部31Cを取り囲んだ状態で、槽側連結部15における貫通穴15Cの周囲の部分を上下から挟み込むように取り付けられる。   A through hole 15 </ b> C is formed in the tank side connecting part 15 so as to penetrate the protruding part 15 </ b> B of the tank side connecting part 15 in the vertical direction Z. The insertion portion 31C of the shaft 31 of the lower portion 21 of the corresponding support member 5 is inserted into the through hole 15C from the upper side Z1, and the pair of lower sandwiching portions 32 of the lower portion 21 are formed on the protruding portion 15B in the vertical direction Z. Located on both sides. The pair of lower elastic bodies 41 are attached so as to sandwich a portion around the through hole 15C in the tank side connecting portion 15 from above and below in a state of surrounding the insertion portion 31C of the shaft 31.

具体的に、第1下側弾性体41Aでは、上面が下部21の第1下側挟込部32Aに下側Z2から接触し、挿入部31Cが貫通穴41Cに挿入され、第1下側弾性体41Aの下面の凸部41Eが、槽側連結部15の張出部15Bに上側Z1から接触した状態にある。第2下側弾性体41Bでは、下面が下部21の第2下側挟込部32Bに上側Z1から接触し、挿入部31Cが貫通穴41Fに挿入され、第2下側弾性体41Bの上面の突出部41Gが貫通穴15Cに挿入され、第2下側弾性体41Bの上面の凸部41Hが、張出部15Bに下側Z2から接触した状態にある。突出部41Gが貫通穴15Cに挿入されることによって、第2下側弾性体41Bが横方向XYにおいて位置決めされる。第1下側挟込部32Aの外周部32Cは、下側Z2へ折り曲げられ、第1下側弾性体41Aを取り囲むことによって横方向XYにおいて位置決めする。   Specifically, in the first lower elastic body 41A, the upper surface comes into contact with the first lower sandwiching portion 32A of the lower portion 21 from the lower side Z2, and the insertion portion 31C is inserted into the through hole 41C. The convex portion 41E on the lower surface of the body 41A is in contact with the protruding portion 15B of the tank side connecting portion 15 from the upper side Z1. In the second lower elastic body 41B, the lower surface is in contact with the second lower sandwiching portion 32B of the lower portion 21 from the upper side Z1, the insertion portion 31C is inserted into the through hole 41F, and the upper surface of the second lower elastic body 41B is The protruding portion 41G is inserted into the through hole 15C, and the convex portion 41H on the upper surface of the second lower elastic body 41B is in contact with the protruding portion 15B from the lower side Z2. By inserting the protrusion 41G into the through hole 15C, the second lower elastic body 41B is positioned in the lateral direction XY. The outer peripheral portion 32C of the first lower sandwiching portion 32A is bent to the lower side Z2, and is positioned in the lateral direction XY by surrounding the first lower elastic body 41A.

このように槽側連結部15を挟み込んだ一対の下側弾性体41は、第1下側挟込部32Aおよび第2下側挟込部32Bという一対の下側挟込部32によって上下から挟み込まれて圧縮された状態にある。圧縮された各下側弾性体41は、下部21の下側挟込部32と槽側連結部15との間に介在し、下部21を槽側連結部15に弾性的に連結した状態にある。付勢部22および減衰部23が上下方向Zにおける支持部材5の中間部に設けられるので、付勢部22および減衰部23に邪魔されることなく、支持部材5の下部21を槽側連結部15に弾性的に連結できる。   The pair of lower elastic bodies 41 sandwiching the tank side connecting portion 15 in this manner is sandwiched from above and below by a pair of lower sandwiching portions 32 called a first lower sandwiching portion 32A and a second lower sandwiching portion 32B. In a compressed state. Each compressed lower elastic body 41 is interposed between the lower sandwiched portion 32 of the lower portion 21 and the tank side connecting portion 15 and is in a state in which the lower portion 21 is elastically connected to the tank side connecting portion 15. . Since the urging portion 22 and the attenuation portion 23 are provided in the middle portion of the support member 5 in the vertical direction Z, the lower portion 21 of the support member 5 is connected to the tank side connection portion without being obstructed by the urging portion 22 and the attenuation portion 23. 15 can be elastically connected.

上下方向Zにおいて収縮するように付勢された支持部材5では、一対の下側弾性体41のうち、下側Z2に位置する第2下側弾性体41Bが、第2下側挟込部32Bによって槽側連結部15へ向けて強く押さえつけられるので、第1下側弾性体41Aよりも強く圧縮された状態にある。圧縮された第1下側弾性体41Aの下面では、凸部41Eが潰れて当該下面の全体が槽側連結部15に圧接してもよく、圧縮された第2下側弾性体41Bの上面では、凸部41Hが潰れて当該上面の全体が槽側連結部15に圧接してもよい。この場合には、第2下側弾性体41Bの突出部41Gが上側Z1へずれて第1下側弾性体41Aの上面の凹部41Dに嵌まり込んでもよい。   In the support member 5 biased to contract in the vertical direction Z, the second lower elastic body 41B located on the lower side Z2 of the pair of lower elastic bodies 41 is the second lower sandwiching portion 32B. Is strongly pressed toward the tank-side connecting portion 15, and is compressed more strongly than the first lower elastic body 41 </ b> A. On the lower surface of the compressed first lower elastic body 41A, the convex portion 41E may be crushed and the entire lower surface may be in pressure contact with the tank-side connecting portion 15. On the upper surface of the compressed second lower elastic body 41B, The convex portion 41H may be crushed and the entire upper surface may be in pressure contact with the tank side connecting portion 15. In this case, the protrusion 41G of the second lower elastic body 41B may be shifted to the upper side Z1 and fit into the recess 41D on the upper surface of the first lower elastic body 41A.

筐体側連結部6および槽側連結部15に連結された各支持部材5は、筐体側連結部6から吊り下がり、上下に弾性的に伸縮することによって洗濯槽3を弾性支持した状態にある。そのため、洗濯運転中において内槽11の回転に伴って洗濯槽3に生じた振動が筐体2に伝わることが、各支持部材5の伸縮によって抑制される。   Each support member 5 connected to the housing side connecting portion 6 and the tub side connecting portion 15 is in a state of elastically supporting the washing tub 3 by hanging from the housing side connecting portion 6 and elastically expanding and contracting up and down. Therefore, the vibration generated in the washing tub 3 along with the rotation of the inner tub 11 during the washing operation is suppressed by the expansion and contraction of each support member 5.

次に、比較例に係る洗濯機51について説明する。図3は、洗濯機51における要部を横から見た側面図である。洗濯機51は、その外殻を構成するボックス状の筐体52を含む。筐体52の内部の上端部52Aにおいて筐体52の四隅に一致した4箇所には、下側Z2へ半球状に凹んだ筐体側連結部52Bが1つずつ形成される。それぞれの筐体側連結部52Bの下端には、上下方向Zに延びる貫通穴52Cが形成される。   Next, the washing machine 51 according to the comparative example will be described. FIG. 3 is a side view of the main part of the washing machine 51 as viewed from the side. The washing machine 51 includes a box-shaped casing 52 that constitutes an outer shell thereof. In the upper end portion 52A inside the casing 52, four casing-side connecting sections 52B that are recessed in a hemispherical shape toward the lower side Z2 are formed one by one at four locations that coincide with the four corners of the casing 52. A through hole 52 </ b> C extending in the vertical direction Z is formed at the lower end of each housing-side coupling portion 52 </ b> B.

筐体52内において上端部52Aよりも下側Z2の領域には、洗濯槽53と、モータ54と、支持部材55とが配置される。洗濯槽53は、外槽56と内槽57とを含む。図3では、外槽56および内槽57のそれぞれの縦断面が部分的に表れるように、洗濯槽53の一部が切り欠かれて図示される。外槽56は、上下方向Zに延びる中心軸線を有する有底円筒状に形成される。外槽56の円周壁の下端部において筐体52の四隅に一致した周上4箇所には、上側Z1へ半球状に凹んだ槽側連結部56Aが1つずつ設けられる。それぞれの槽側連結部56Aの上端には、上下方向Zに延びる貫通穴56Bが形成される。内槽57は、例えば金属製であり、外槽56よりも一回り小さい有底円筒状に形成され、外槽56内に同軸状で収容される。内槽57の上端部には、前述したバランスリング18(図1参照)と同様のバランスリング58が取り付けられる。モータ54は、外槽56の底壁に対して下側Z2から固定される。内槽57は、モータ54の駆動力が伝達されることによって、駆動回転される。   In the housing 52, a washing tub 53, a motor 54, and a support member 55 are disposed in a region Z2 below the upper end 52A. The washing tub 53 includes an outer tub 56 and an inner tub 57. In FIG. 3, a part of the washing tub 53 is cut away so that the longitudinal sections of the outer tub 56 and the inner tub 57 are partially shown. The outer tub 56 is formed in a bottomed cylindrical shape having a central axis extending in the vertical direction Z. One tank side connecting portion 56A that is recessed in a hemispherical shape toward the upper side Z1 is provided one by one at four positions on the lower end of the circumferential wall of the outer tank 56 that coincide with the four corners of the casing 52. A through hole 56 </ b> B extending in the vertical direction Z is formed at the upper end of each tank side connecting portion 56 </ b> A. The inner tub 57 is made of, for example, metal, is formed in a bottomed cylindrical shape that is slightly smaller than the outer tub 56, and is accommodated coaxially in the outer tub 56. A balance ring 58 similar to the balance ring 18 (see FIG. 1) described above is attached to the upper end portion of the inner tank 57. The motor 54 is fixed to the bottom wall of the outer tub 56 from the lower side Z2. The inner tub 57 is driven to rotate when the driving force of the motor 54 is transmitted.

支持部材55は、筐体2の四隅に1つずつ配置される。それぞれの支持部材55は、上下に長手の棒状に形成される。支持部材55は、上部59と下部60と付勢部61と減衰部62とを含む。支持部材55の要部の縦断面図である図4も参照して、上部59は、上下に細長く直線状に延びるロッド63と、下側Z2へ向けて膨出する半球状に形成されてロッド63の上端部に固定された上側係合部64と、ロッド63の下端部に取り付けられた円板状のピストン65とを含む。ピストン65は、ゴムなどの弾性体によって形成される。ロッド63の下端部には、ピストン65を上下から挟んだ状態でロッド63に固定する一対のワッシャ66と、ワッシャ66よりも上側Z1に位置するリング状の受け部67とが設けられる。各ワッシャ66および受け部67の外径は、ピストン65の外径よりも小さい。受け部67の上面には、ロッド63を取り囲む環状の溝67Aが形成される。   One support member 55 is disposed at each of the four corners of the housing 2. Each support member 55 is formed in a vertically long bar shape. The support member 55 includes an upper portion 59, a lower portion 60, an urging portion 61, and an attenuation portion 62. Referring also to FIG. 4 which is a longitudinal sectional view of the main part of the support member 55, the upper portion 59 is formed into a hemispherical rod 63 which is elongated vertically and extends linearly, and a hemisphere bulging toward the lower side Z2. The upper engagement part 64 fixed to the upper end part of 63 and the disk-shaped piston 65 attached to the lower end part of the rod 63 are included. The piston 65 is formed of an elastic body such as rubber. At the lower end of the rod 63, a pair of washers 66 that are fixed to the rod 63 with the piston 65 sandwiched from above and below, and a ring-shaped receiving portion 67 that is located on the upper side Z1 from the washer 66 are provided. The outer diameter of each washer 66 and the receiving portion 67 is smaller than the outer diameter of the piston 65. On the upper surface of the receiving portion 67, an annular groove 67A surrounding the rod 63 is formed.

下部60は、上下に長手の中空のケース部68と、ケース部68内を下側Z2から塞ぐ蓋部69とを含む。ケース部68内に、ロッド63の下端部と、ピストン65と、ワッシャ66と、受け部67とが収容される。ケース部68の上端部は、上側Z1へ向けて膨出する半球状に形成された下側係合部68Aを構成する。下側係合部68Aには、下部60内に連通する貫通穴68Bが形成される。ロッド63において下端部よりも上側Z1の部分は、貫通穴68Bを通って下側係合部68Aよりも上側Z1に配置される。この状態において、上部59と下部60とは上下方向Zにおいて互いに相対移動可能であり、この相対移動に応じて支持部材55の全体が上下に伸縮する。下側係合部68Aには、下部60内において貫通穴68Bを取り囲んで下側Z2へ突出した筒状の突出部68Cが一体的に設けられる。蓋部69は、ケース部68とは別部品であってもよいし、ケース部68と一体形成されてもよい。   The lower portion 60 includes a hollow case portion 68 that is vertically long and a lid portion 69 that closes the inside of the case portion 68 from the lower side Z2. The lower end portion of the rod 63, the piston 65, the washer 66, and the receiving portion 67 are accommodated in the case portion 68. The upper end portion of the case portion 68 constitutes a lower engagement portion 68A formed in a hemispherical shape that bulges toward the upper side Z1. A through hole 68B communicating with the lower portion 60 is formed in the lower engaging portion 68A. The portion of the rod 63 that is on the upper side Z1 with respect to the lower end portion is disposed on the upper side Z1 with respect to the lower side engaging portion 68A through the through hole 68B. In this state, the upper portion 59 and the lower portion 60 can move relative to each other in the vertical direction Z, and the entire support member 55 expands and contracts vertically according to this relative movement. The lower engaging portion 68A is integrally provided with a cylindrical protruding portion 68C that surrounds the through hole 68B in the lower portion 60 and protrudes to the lower side Z2. The lid portion 69 may be a separate component from the case portion 68 or may be integrally formed with the case portion 68.

付勢部61は、例えば上下に長手のコイルばねであって、圧縮された状態でケース部68内に配置される。付勢部61の下端部は、ロッド63の下端部に固定された受け部67の溝67Aに嵌まり込み、付勢部61の上端部は、下部60の下側係合部68Aにおける突出部68Cに対して外嵌される。圧縮された付勢部61は、伸びようとすることによって受け部67を下側Z2へ付勢する。これにより、受け部67を含む上部59の全体が、下部60に対して下側Z2に相対移動するように付勢されるので、支持部材55の全体が、上下方向Zにおいて弾性的に収縮するように常に付勢された状態にある。   The urging portion 61 is, for example, a vertically long coil spring, and is disposed in the case portion 68 in a compressed state. The lower end portion of the urging portion 61 is fitted into the groove 67A of the receiving portion 67 fixed to the lower end portion of the rod 63, and the upper end portion of the urging portion 61 is a protruding portion in the lower engagement portion 68A of the lower portion 60. It is externally fitted to 68C. The compressed urging portion 61 urges the receiving portion 67 toward the lower side Z <b> 2 by trying to extend. As a result, the entire upper portion 59 including the receiving portion 67 is biased so as to move relative to the lower side Z2 with respect to the lower portion 60, so that the entire support member 55 is elastically contracted in the vertical direction Z. So that it is always energized.

減衰部62に関連して、支持部材55は、摩擦ダンパである。下部60のケース部68において下側係合部68Aよりも下側Z2の部分の内径とピストン65の外径とがほぼ同じであって、ピストン65の外周面とケース部68の内周面とが減衰部62を構成する。
支持部材55の伸縮のために上部59と下部60とが相対移動すると、ピストン65の外周面とケース部68の内周面とが互いに摺動する。この摺動による摩擦によって、上部59と下部60との相対移動が減衰される。
In connection with the damping part 62, the support member 55 is a friction damper. In the case portion 68 of the lower portion 60, the inner diameter of the lower Z2 portion of the lower engagement portion 68A and the outer diameter of the piston 65 are substantially the same, and the outer peripheral surface of the piston 65 and the inner peripheral surface of the case portion 68 Constitutes the attenuation section 62.
When the upper portion 59 and the lower portion 60 move relative to each other for expansion and contraction of the support member 55, the outer peripheral surface of the piston 65 and the inner peripheral surface of the case portion 68 slide relative to each other. The relative movement between the upper part 59 and the lower part 60 is attenuated by the friction caused by the sliding.

それぞれの支持部材55では、上部59の上側係合部64が、筐体52の上端部52Aにおいて対応する筐体側連結部52Bに上側Z1から嵌まり込み、筐体側連結部52Bに球面接触した状態にある。上部59において上端部に上側係合部64が固定されたロッド63は、筐体側連結部52Bの貫通穴52Cを通って下側Z2へ配置される。それぞれの支持部材55では、下部60の下側係合部68Aが、外槽56において対応する槽側連結部56Aに下側Z2から嵌まり込み、槽側連結部56Aに球面接触した状態にある。ロッド63は、槽側連結部56Aの貫通穴56Bを通って上側Z1へ配置される。   In each support member 55, the upper engagement portion 64 of the upper portion 59 is fitted from the upper side Z <b> 1 into the corresponding housing side coupling portion 52 </ b> B at the upper end portion 52 </ b> A of the housing 52 and is in spherical contact with the housing side coupling portion 52 </ b> B. It is in. The rod 63 having the upper engagement portion 64 fixed to the upper end portion in the upper portion 59 is disposed on the lower side Z2 through the through hole 52C of the housing side connection portion 52B. In each support member 55, the lower engaging portion 68 </ b> A of the lower portion 60 is fitted into the corresponding tank side connecting portion 56 </ b> A in the outer tank 56 from the lower side Z <b> 2 and is in spherical contact with the tank side connecting portion 56 </ b> A. . The rod 63 is disposed on the upper side Z1 through the through hole 56B of the tank side connecting portion 56A.

洗濯機51において筐体側連結部52Bおよび槽側連結部56Aに連結された各支持部材55は、筐体側連結部52Bから吊り下がり、上下に弾性的に伸縮することによって洗濯槽53を弾性支持した状態にある。そのため、洗濯運転中において内槽57の回転に伴って洗濯槽53に生じた振動が筐体52に伝わることが、各支持部材55の伸縮によって抑制される。   In the washing machine 51, each support member 55 connected to the housing side connecting portion 52B and the tank side connecting portion 56A is suspended from the housing side connecting portion 52B and elastically supports the laundry tub 53 by elastically expanding and contracting up and down. Is in a state. Therefore, the vibration generated in the washing tub 53 due to the rotation of the inner tub 57 during the washing operation is suppressed by the expansion and contraction of each support member 55.

図5は、第1実施形態の洗濯機1と比較例の洗濯機51とに関して、各洗濯機の脱水工程中において内槽の回転に伴って洗濯槽に生じる振動と経過時間との関係を示すグラフである。図5において、横軸は、脱水工程において例えば1300rpm以上の回転数で内槽が高速回転する際における経過時間を示し、縦軸は、内槽の高速回転中における洗濯機1の洗濯槽3または洗濯機51の洗濯槽53の振動による横方向XYへの変位量を示す。経過時間の単位は、例えばmsであり、変位量の単位は、例えばmmである。   FIG. 5 shows the relationship between the vibration generated in the washing tub with the rotation of the inner tub during the dehydration process of each washing machine and the elapsed time for the washing machine 1 of the first embodiment and the washing machine 51 of the comparative example. It is a graph. In FIG. 5, the horizontal axis indicates the elapsed time when the inner tub rotates at a high speed, for example, at a rotational speed of 1300 rpm or more in the dehydration process, and the vertical axis indicates the washing tub 3 of the washing machine 1 during the high-speed rotation of the inner tub. The amount of displacement in the lateral direction XY due to the vibration of the washing tub 53 of the washing machine 51 is shown. The unit of elapsed time is, for example, ms, and the unit of displacement is, for example, mm.

比較例では、各支持部材55は、筐体側連結部52Bおよび槽側連結部56Aに引っ掛かっただけの状態にある(図3参照)。この場合、洗濯物が偏って配置された内槽57が脱水工程において高速回転すると、高速回転に伴って振動が増大する洗濯槽53の動きに支持部材55の伸縮が追従できなくなることによって、支持部材55が瞬間的に筐体側連結部52Bおよび槽側連結部56Aから離れてしまう虞がある。支持部材55が筐体側連結部52Bおよび槽側連結部56Aから離れてしまうと、瞬間的にフリーになった洗濯槽53の挙動が不規則になることによって、洗濯槽53に異常振動が発生する。洗濯槽53の異常振動によってバランスリング58内の液体が内槽57内の洗濯物側に偏ってくると、異常振動が大きくなる。すると、図5において破線で示すように、異常振動の影響によって洗濯槽53の振動がさらに増大し、洗濯槽53の振動における振幅が大きくなるとともに、1回の振動における洗濯槽53の変位量の上限値および下限値のそれぞれが安定せずに振動の度に大きく変動する。これにより、洗濯槽53の外槽56が筐体52に接触することによって、騒音が発生する。また、筐体側連結部52Bおよび槽側連結部56Aから離れた支持部材55がこれらに再び接触する際に発生する接触音も、騒音となる。   In the comparative example, each support member 55 is only in a state of being caught by the housing side connecting portion 52B and the tank side connecting portion 56A (see FIG. 3). In this case, when the inner tub 57 in which the laundry is biased is rotated at a high speed in the dehydration process, the expansion and contraction of the support member 55 cannot follow the movement of the washing tub 53 in which the vibration increases with the high speed rotation. There is a possibility that the member 55 may be momentarily separated from the housing side connecting portion 52B and the tank side connecting portion 56A. When the support member 55 is separated from the housing side connecting portion 52B and the tank side connecting portion 56A, the behavior of the washing tub 53 that is instantaneously free becomes irregular, and thus abnormal vibration occurs in the washing tub 53. . If the liquid in the balance ring 58 is biased toward the laundry in the inner tub 57 due to the abnormal vibration of the washing tub 53, the abnormal vibration increases. Then, as shown by a broken line in FIG. 5, the vibration of the washing tub 53 further increases due to the influence of abnormal vibration, the amplitude in the vibration of the washing tub 53 increases, and the displacement amount of the washing tub 53 in one vibration is increased. Each of the upper limit value and the lower limit value is not stable and fluctuates greatly with each vibration. As a result, noise is generated when the outer tub 56 of the washing tub 53 contacts the housing 52. Further, the contact sound generated when the support member 55 separated from the casing side connection portion 52B and the tank side connection portion 56A comes into contact with them again becomes noise.

一方、第1実施形態に係る洗濯機1では、支持部材5において、上部20が、上側弾性体40を介して筐体側連結部6に弾性的に連結され、下部21が、下側弾性体41を介して槽側連結部15に弾性的に連結される(図2参照)。そのため、洗濯槽3における内槽11の高速回転時において、高速回転による振動によって支持部材5を筐体側連結部6および槽側連結部15から離そうとする力が発生しても、この力は、上側弾性体40や下側弾性体41の弾性変形によって吸収される。これにより、支持部材5が筐体側連結部6および槽側連結部15から離れることが抑制されるので、支持部材5は、振動に伴う洗濯槽3の動きに確実に追従できる。よって、支持部材5が筐体側連結部6および槽側連結部15から離れることによる洗濯槽3の異常振動を抑制できるので、図5において実線で示すように、洗濯槽3は、変位量の上限値および下限値のそれぞれがほぼ一定で比較例よりも著しく小さい振幅によって安定して振動する。そのため、第1実施形態に係る洗濯機1では、この異常振動を原因とする騒音を抑制できる。   On the other hand, in the washing machine 1 according to the first embodiment, in the support member 5, the upper part 20 is elastically connected to the housing-side connecting part 6 via the upper elastic body 40, and the lower part 21 is the lower elastic body 41. It is elastically connected to the tank side connection part 15 via (refer FIG. 2). Therefore, even when a force for separating the support member 5 from the housing-side connecting portion 6 and the tank-side connecting portion 15 is generated by vibration due to the high-speed rotation during the high-speed rotation of the inner tub 11 in the washing tub 3, this force is The upper elastic body 40 and the lower elastic body 41 are absorbed by elastic deformation. Thereby, since it is suppressed that the support member 5 leaves | separates from the housing | casing side connection part 6 and the tank side connection part 15, the support member 5 can track the motion of the washing tub 3 accompanying a vibration reliably. Therefore, since the abnormal vibration of the washing tub 3 due to the support member 5 being separated from the casing-side connecting portion 6 and the tub-side connecting portion 15 can be suppressed, the washing tub 3 has an upper limit of the displacement amount as shown by a solid line in FIG. Each of the value and the lower limit value is substantially constant and vibrates stably with an amplitude significantly smaller than that of the comparative example. Therefore, in the washing machine 1 according to the first embodiment, noise caused by this abnormal vibration can be suppressed.

特に、第1実施形態に係る洗濯機1では、支持部材5の上部20に設けられた上側挟込部27が、筐体側連結部6を上下から挟み込んだ一対の上側弾性体40を上下から挟み込んで筐体側連結部6に固定する(図2参照)。これにより、支持部材5の上部20が筐体側連結部6から離れることが一層抑制される。そのため、支持部材5が筐体側連結部6から離れることによる洗濯槽3の異常振動を一層抑制できる。また、筐体側連結部6を支点とする洗濯槽3の振り子運動が上側弾性体40の弾性変形によって減衰されるので、この振り子運動による洗濯槽3の異常振動も抑制できる。   In particular, in the washing machine 1 according to the first embodiment, the upper sandwiching portion 27 provided on the upper portion 20 of the support member 5 sandwiches the pair of upper elastic bodies 40 sandwiching the housing side connecting portion 6 from above and below from above and below. Then, it is fixed to the housing side connecting portion 6 (see FIG. 2). Thereby, it is further suppressed that the upper part 20 of the support member 5 is separated from the housing side connecting part 6. Therefore, the abnormal vibration of the washing tub 3 due to the support member 5 being separated from the housing side connecting portion 6 can be further suppressed. Moreover, since the pendulum motion of the washing tub 3 using the housing side connecting portion 6 as a fulcrum is attenuated by the elastic deformation of the upper elastic body 40, the abnormal vibration of the washing tub 3 due to the pendulum motion can also be suppressed.

さらに、第1実施形態に係る洗濯機1では、支持部材5の下部21に設けられた下側挟込部32が、槽側連結部15を上下から挟み込んだ一対の下側弾性体41を上下から挟み込んで槽側連結部15に固定する(図2参照)。これにより、支持部材5の下部21が槽側連結部15から離れることが一層抑制される。そのため、支持部材5が槽側連結部15から離れることによる洗濯槽3の異常振動を一層抑制できる。また、槽側連結部15を支点とする洗濯槽3の振り子運動が下側弾性体41の弾性変形によって減衰されるので、この振り子運動による洗濯槽3の異常振動も抑制できる。   Furthermore, in the washing machine 1 which concerns on 1st Embodiment, the lower side clamping part 32 provided in the lower part 21 of the supporting member 5 raises and lowers a pair of lower elastic body 41 which clamped the tank side connection part 15 from the upper and lower sides. And fixed to the tank side connecting portion 15 (see FIG. 2). Thereby, it is further suppressed that the lower part 21 of the support member 5 is separated from the tank side connection part 15. Therefore, the abnormal vibration of the washing tub 3 due to the support member 5 being separated from the tub side connecting portion 15 can be further suppressed. Further, since the pendulum motion of the washing tub 3 with the tub side connecting portion 15 as a fulcrum is attenuated by the elastic deformation of the lower elastic body 41, the abnormal vibration of the washing tub 3 due to this pendulum motion can also be suppressed.

なお、洗濯機1において、4つ全ての支持部材5が筐体側連結部6および槽側連結部15に弾性的に連結されると好ましいが、洗濯槽3を挟んで対向する少なくとも2つの支持部材5が筐体側連結部6および槽側連結部15に弾性的に連結された構成であっても、洗濯槽3の異常振動を、ある程度抑制できる。   In the washing machine 1, it is preferable that all four support members 5 are elastically connected to the housing side connection portion 6 and the tub side connection portion 15, but at least two support members that face each other with the washing tub 3 interposed therebetween. Even if 5 is elastically connected to the housing side connecting part 6 and the tank side connecting part 15, the abnormal vibration of the washing tub 3 can be suppressed to some extent.

次に、第2実施形態について説明する。図6は、第2実施形態に係る洗濯機1における要部を横から見た側面図である。図6において、今まで説明した部分と同一の部分には同一符号を付して、当該部分についての説明は省略する。図7は、第1実施形態と第2実施形態とに関して、脱水工程中において内槽の回転に伴って洗濯槽に生じる振動と経過時間との関係を示すグラフである。図7におけるグラフの見方は、図5におけるグラフの見方と同じである。   Next, a second embodiment will be described. Drawing 6 is a side view which looked at the important section in washing machine 1 concerning a 2nd embodiment from the side. In FIG. 6, the same parts as those described so far are denoted by the same reference numerals, and description thereof is omitted. FIG. 7 is a graph showing the relationship between the vibration generated in the washing tub and the elapsed time with the rotation of the inner tub during the dehydration process in the first embodiment and the second embodiment. The way of viewing the graph in FIG. 7 is the same as the way of viewing the graph in FIG.

洗濯槽3において支持部材5の下部21が連結される槽側連結部15は、第2実施形態のように、洗濯槽3の重心Gよりも下側Z2に位置してもよい。第1実施形態および第2実施形態のそれぞれにおいて、重量物であるモータ4が外槽10の底壁13に固定される構造上、重心Gは、洗濯槽3において下側Z2に偏った位置にある。洗濯物が内槽11内において下側Z2に偏った場合には、上下方向Zにおいて洗濯物が重心Gに近くなるので、脱水工程において内槽11が高速回転する場合でも、洗濯槽3の姿勢が安定する。   The tank side connection part 15 to which the lower part 21 of the support member 5 is connected in the washing tub 3 may be located on the lower side Z2 with respect to the center of gravity G of the washing tub 3 as in the second embodiment. In each of the first embodiment and the second embodiment, the center of gravity G is at a position biased to the lower side Z2 in the washing tub 3 due to the structure in which the heavy motor 4 is fixed to the bottom wall 13 of the outer tub 10. is there. When the laundry is biased to the lower side Z2 in the inner tub 11, since the laundry is close to the center of gravity G in the vertical direction Z, the posture of the laundry tub 3 even when the inner tub 11 rotates at a high speed in the dehydration process. Is stable.

しかし、洗濯物が内槽11内において上側Z1に偏った場合には、第2実施形態では、洗濯物が重心Gから上側Z1へ離れるので、洗濯槽3の姿勢が不安点になる。そのため、内槽11の高速回転時には、洗濯槽3において槽側連結部15よりも上側Z1の部分が槽側連結部15を支点として振り子運動し、この振り子運動による異常振動が発生する。すると、図7において破線で示すように、振動による洗濯槽3の変位量の上限値および下限値のそれぞれが、第1実施形態(図7の実線)のように安定せずに変動する。   However, when the laundry is biased to the upper side Z1 in the inner tub 11, the laundry is separated from the center of gravity G to the upper side Z1 in the second embodiment, so that the posture of the laundry tub 3 becomes an uneasy point. Therefore, when the inner tub 11 is rotated at a high speed, the portion of the upper side Z1 of the washing tub 3 with respect to the tub side connecting portion 15 performs a pendulum motion with the tub side connecting portion 15 as a fulcrum, and abnormal vibration due to this pendulum motion occurs. Then, as indicated by a broken line in FIG. 7, each of the upper limit value and the lower limit value of the displacement amount of the washing tub 3 due to vibration varies in a stable manner as in the first embodiment (solid line in FIG. 7).

一方、第1実施形態に係る洗濯機1では、支持部材5の下部21が連結される槽側連結部15が、洗濯槽3の重心Gよりも上側Z1に位置するので、洗濯槽3において重い部分は、支持部材5の下部21から下側Z2へぶら下がった状態にある(図1参照)。この場合、洗濯物が洗濯槽3の内槽11内において上側Z1へ偏って配置された状態において、洗濯槽3において槽側連結部15よりも上側Z1の部分が槽側連結部15を支点として振り子運動しようとしても、この振り子運動は、槽側連結部15における下側弾性体41によって減衰される。これにより、この振り子運動による異常振動を抑制できる。そのため、前述したように、洗濯槽53は、変位量の上限値および下限値のそれぞれがほぼ一定になった小さい振幅によって安定して振動する。内槽11内で上側Z1へ偏る洗濯物は、バランスリング18の近傍まで到達するので、重心Gよりも上側Z1に位置する槽側連結部15は、バランスリング18に下側Z2から隣接する高さ位置に配置されると好ましい。   On the other hand, in the washing machine 1 according to the first embodiment, the tank-side connecting portion 15 to which the lower portion 21 of the support member 5 is connected is located above the center of gravity G of the washing tub 3. The portion is in a state of hanging from the lower portion 21 of the support member 5 to the lower side Z2 (see FIG. 1). In this case, in a state where the laundry is arranged in the inner tub 11 of the washing tub 3 so as to be biased toward the upper side Z1, the portion on the upper side Z1 in the washing tub 3 with respect to the tub side connecting portion 15 serves as a fulcrum. Even if the pendulum movement is attempted, the pendulum movement is attenuated by the lower elastic body 41 in the tank side connecting portion 15. Thereby, the abnormal vibration by this pendulum movement can be suppressed. Therefore, as described above, the washing tub 53 vibrates stably with a small amplitude in which the upper limit value and the lower limit value of the displacement amount are substantially constant. Since the laundry that is biased toward the upper side Z1 in the inner tub 11 reaches the vicinity of the balance ring 18, the tub side connecting portion 15 that is located on the upper side Z1 with respect to the center of gravity G is adjacent to the balance ring 18 from the lower side Z2. It is preferable to arrange in the vertical position.

次に、第3実施形態について説明する。図8は、第3実施形態に係る洗濯機1において支持部材5の縦断面と支持部材5の周囲の部分とを横から見た側面図である。図8において、今まで説明した部分と同一の部分には同一符号を付して、当該部分についての説明は省略する。第1および第2実施形態において、一対の上側弾性体40および下側弾性体41のうち、洗濯槽3の異常振動の抑制に主に寄与するのは、支持部材5において荷重が集中する両端に位置する第2上側弾性体40Bおよび第2下側弾性体41Bである。   Next, a third embodiment will be described. FIG. 8 is a side view of the washing machine 1 according to the third embodiment, as seen from the side, of a longitudinal section of the support member 5 and a portion around the support member 5. In FIG. 8, the same parts as those described so far are denoted by the same reference numerals, and description thereof is omitted. In the first and second embodiments, of the pair of upper elastic body 40 and lower elastic body 41, the main contribution to the suppression of abnormal vibration of the washing tub 3 is at both ends where the load concentrates in the support member 5. The second upper elastic body 40B and the second lower elastic body 41B are positioned.

そこで、第3実施形態のように、第1上側弾性体40Aおよび第1下側弾性体41Aを省略してもよい。図8に示される洗濯機1は、第1実施形態から第1上側弾性体40Aおよび第1下側弾性体41Aを省略した構成に相当するが、第1実施形態ほどではないものの、洗濯槽3の異常振動をある程度抑制できる。もちろん、上側弾性体40および下側弾性体41を1つずつで済ませることによって、部品点数およびコストの低減を図れる。   Therefore, as in the third embodiment, the first upper elastic body 40A and the first lower elastic body 41A may be omitted. The washing machine 1 shown in FIG. 8 corresponds to a configuration in which the first upper elastic body 40A and the first lower elastic body 41A are omitted from the first embodiment, but the washing tub 3 is not as large as the first embodiment. Abnormal vibration can be suppressed to some extent. Of course, the number of parts and the cost can be reduced by using the upper elastic body 40 and the lower elastic body 41 one by one.

第1〜第3実施形態に係る洗濯機1では、支持部材5がオイルダンパである。この支持部材5が洗濯槽3を弾性支持するために伸縮する際に、支持部材5では上部20のピストン26と下部21の筒部30とが互いに摺動する。特に、脱水工程における内槽11の高速回転時では、ピストン26がほぼ同じ位置で高速で微小往復するが、これらのピストン26および筒部30は、金属製であり、ピストン26と筒部30との摺動部分が周囲のオイルによって潤滑される。そのため、これらの摺動部分は、摺動によって摩耗しにくい。また、金属製のピストン26および筒部30は、横方向XYからの横荷重によって変形しにくい。これにより、内槽11の高速回転時において支持部材5に横荷重がかかった状態であっても、支持部材5の耐久性および減衰性能を確保できる。そのため、支持部材5は、安定した状態で洗濯槽3を弾性支持できるので、洗濯槽3の異常振動を安定して抑制できる。   In the washing machine 1 according to the first to third embodiments, the support member 5 is an oil damper. When the support member 5 expands and contracts to elastically support the washing tub 3, the piston 26 of the upper portion 20 and the cylindrical portion 30 of the lower portion 21 slide on each other in the support member 5. In particular, when the inner tub 11 is rotated at a high speed in the dehydration process, the piston 26 reciprocates slightly at a high speed at substantially the same position. However, the piston 26 and the cylinder part 30 are made of metal, and the piston 26 and the cylinder part 30 The sliding part is lubricated by the surrounding oil. Therefore, these sliding portions are not easily worn by sliding. Further, the metal piston 26 and the cylindrical portion 30 are not easily deformed by a lateral load from the lateral direction XY. Thereby, even if a lateral load is applied to the support member 5 when the inner tub 11 is rotated at high speed, the durability and damping performance of the support member 5 can be ensured. Therefore, since the supporting member 5 can elastically support the washing tub 3 in a stable state, abnormal vibration of the washing tub 3 can be stably suppressed.

次に、第4実施形態について説明する。図9は、第4実施形態に係る支持部材5の要部の縦断面図である。オイルダンパの代わりに、前述した摩擦ダンパを支持部材5に用いてもよい。そのため、第4実施形態に係る支持部材5は、比較例に係る支持部材55(図4参照)とほぼ同じ構成を有する。図9において、比較例で説明した部分と同一の部分には同一符号を付して、当該部分についての説明は省略する。第4実施形態では、第1〜第3実施形態と同様に、支持部材5の上部59が、上側弾性体40を介して筐体側連結部6に弾性的に連結され、支持部材5の下部60が、下側弾性体41を介して槽側連結部15に弾性的に連結される。具体的に、上部59では、ロッド63の上端部が筐体側連結部6に連結され、下部60では、蓋部69から下側Z2に延びる別のロッド70の下端部が槽側連結部15に連結される。   Next, a fourth embodiment will be described. FIG. 9 is a vertical cross-sectional view of a main part of the support member 5 according to the fourth embodiment. The friction damper described above may be used for the support member 5 instead of the oil damper. Therefore, the support member 5 according to the fourth embodiment has substantially the same configuration as the support member 55 (see FIG. 4) according to the comparative example. In FIG. 9, parts that are the same as the parts described in the comparative example are given the same reference numerals, and descriptions thereof are omitted. In the fourth embodiment, as in the first to third embodiments, the upper portion 59 of the support member 5 is elastically connected to the housing side connection portion 6 via the upper elastic body 40, and the lower portion 60 of the support member 5. Is elastically connected to the tank side connecting portion 15 via the lower elastic body 41. Specifically, in the upper portion 59, the upper end portion of the rod 63 is connected to the housing side connecting portion 6, and in the lower portion 60, the lower end portion of another rod 70 extending from the lid portion 69 to the lower side Z2 is connected to the tank side connecting portion 15. Connected.

第4実施形態の支持部材5では、第1〜第3実施形態の支持部材5と同様に、付勢部61および減衰部62が、上下方向Zにおける支持部材5の中間部に設けられる。第4実施形態では、摩擦ダンパを用いた支持部材5であっても、洗濯槽3の異常振動をある程度抑制できる。また、オイルダンパよりも構造が単純な摩擦ダンパを支持部材5に用いることによって、コストの低減を図れる。   In the support member 5 of the fourth embodiment, the urging portion 61 and the attenuation portion 62 are provided in the intermediate portion of the support member 5 in the vertical direction Z, as in the support member 5 of the first to third embodiments. In 4th Embodiment, even if it is the support member 5 using a friction damper, the abnormal vibration of the washing tub 3 can be suppressed to some extent. Further, the use of a friction damper having a simpler structure than that of the oil damper for the support member 5 can reduce the cost.

この発明は、以上に説明した実施形態に限定されるものではなく、請求項に記載の範囲内において種々の変更が可能である。   The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the claims.

例えば、洗濯機1は、内槽11の回転軸である中心軸線Jが上下方向Zに延びる縦型洗濯機であるが、中心軸線Jは、上下方向Zに対して傾斜して配置されてもよい。   For example, the washing machine 1 is a vertical washing machine in which the central axis J that is the rotation axis of the inner tub 11 extends in the vertical direction Z. However, the central axis J may be inclined with respect to the vertical direction Z. Good.

また、前述した第1〜第4実施形態において、支持部材5における上下の向きが逆であってもよい。その場合、支持部材5において、前述した上部20や59(図2および図9参照)が下部となり、前述した下部21や60(図2および図9参照)が上部となる。   Further, in the first to fourth embodiments described above, the vertical direction of the support member 5 may be reversed. In this case, in the support member 5, the above-described upper portions 20 and 59 (see FIGS. 2 and 9) are the lower portions, and the lower portions 21 and 60 (see FIGS. 2 and 9) are the upper portions.

また、支持部材5は、収縮するように付勢されるのではなく、伸長するように付勢されてもよい。   Further, the support member 5 may be urged not to be contracted but to be extended.

1 洗濯機
2 筐体
3 洗濯槽
5 支持部材
6 筐体側連結部
10 外槽
11 内槽
15 槽側連結部
20 上部
21 下部
22 付勢部
23 減衰部
26 ピストン
27 上側挟込部
30 筒部
32 下側挟込部
40 上側弾性体
41 下側弾性体
59 上部
60 下部
61 付勢部
62 減衰部
G 重心
Z 上下方向
Z1 上側
DESCRIPTION OF SYMBOLS 1 Washing machine 2 Housing | casing 3 Washing tub 5 Support member 6 Housing | casing side connection part 10 Outer tank 11 Inner tank 15 Tank side connection part 20 Upper part 21 Lower part 22 Energizing part 23 Attenuating part 26 Piston 27 Upper clamping part 30 Tube part 32 Lower clamping part 40 Upper elastic body 41 Lower elastic body 59 Upper part 60 Lower part 61 Energizing part 62 Damping part G Center of gravity Z Vertical direction Z1 Upper part

Claims (6)

筐体と、
洗濯物を収容して回転可能な内槽と、前記内槽を収容する外槽とを有し、前記筐体内に配置される洗濯槽と、
前記筐体から吊り下がる棒状に形成され、上下に伸縮することによって前記洗濯槽を弾性支持する支持部材と、
前記筐体に設けられ、前記支持部材の上部が連結される筐体側連結部と、
前記外槽に設けられ、前記支持部材の下部が連結される槽側連結部と、
前記支持部材の前記上部と前記筐体側連結部との間に介在し、前記上部を前記筐体側連結部に弾性的に連結する上側弾性体と、
前記支持部材の前記下部と前記槽側連結部との間に介在し、前記下部を前記槽側連結部に弾性的に連結する下側弾性体とを含む、洗濯機。
A housing,
An inner tub that accommodates laundry and is rotatable; an outer tub that accommodates the inner tub; and a laundry tub disposed in the housing;
A support member that is formed in a rod shape hanging from the housing and elastically supports the washing tub by extending and contracting up and down;
A casing-side coupling portion provided in the casing and coupled to an upper portion of the support member;
A tank side connecting portion provided in the outer tank and connected to a lower portion of the support member;
An upper elastic body interposed between the upper portion of the support member and the housing side connecting portion, and elastically connecting the upper portion to the housing side connecting portion;
A washing machine, comprising: a lower elastic body interposed between the lower portion of the support member and the tank-side connecting portion and elastically connecting the lower portion to the tank-side connecting portion.
前記上側弾性体は、一対設けられて、前記筐体側連結部を上下から挟み込み、
前記支持部材の前記上部には、前記筐体側連結部を挟み込んだ一対の前記上側弾性体を上下から挟み込む上側挟込部が設けられる、請求項1に記載の洗濯機。
The upper elastic body is provided as a pair, and sandwiches the casing side connecting portion from above and below,
2. The washing machine according to claim 1, wherein an upper sandwiching portion that sandwiches a pair of the upper elastic bodies sandwiching the housing-side coupling portion from above and below is provided on the upper portion of the support member.
前記下側弾性体は、一対設けられて、前記槽側連結部を上下から挟み込み、
前記支持部材の前記下部には、前記槽側連結部を挟み込んだ一対の前記下側弾性体を上下から挟み込む下側挟込部が設けられる、請求項1または2に記載の洗濯機。
The lower elastic body is provided as a pair, and sandwiches the tank side connecting portion from above and below,
The washing machine according to claim 1 or 2, wherein a lower sandwiching portion that sandwiches a pair of the lower elastic bodies sandwiching the tank-side coupling portion from above and below is provided at the lower portion of the support member.
前記槽側連結部は、前記洗濯槽の重心よりも上側に位置する、請求項1〜3のいずれか一項に記載の洗濯機。   The said tub side connection part is a washing machine as described in any one of Claims 1-3 located above the gravity center of the said washing tub. 前記支持部材が伸縮する際に、前記上部と前記下部とが互いに摺動し、
前記上部および前記下部において互いに摺動する部分は、金属製である、請求項1〜4のいずれか一項に記載の洗濯機。
When the support member expands and contracts, the upper part and the lower part slide with each other,
The washing machine according to any one of claims 1 to 4, wherein a portion that slides on the upper portion and the lower portion is made of metal.
前記支持部材は、前記上部と前記下部とを上下に相対移動するように付勢する付勢部と、前記上部と前記下部との相対移動を減衰させる減衰部とを含み、
前記付勢部および前記減衰部は、上下方向における前記支持部材の中間部に設けられる、請求項1〜5のいずれか一項に記載の洗濯機。
The support member includes an urging portion that urges the upper portion and the lower portion to move relative to each other up and down, and an attenuation portion that attenuates relative movement between the upper portion and the lower portion.
The washing machine according to any one of claims 1 to 5, wherein the urging portion and the attenuation portion are provided at an intermediate portion of the support member in the vertical direction.
JP2016178837A 2016-09-13 2016-09-13 Washing machine Pending JP2018042681A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2016178837A JP2018042681A (en) 2016-09-13 2016-09-13 Washing machine
PCT/CN2017/101503 WO2018050060A1 (en) 2016-09-13 2017-09-13 Laundry machine
CN201780055420.1A CN109689960A (en) 2016-09-13 2017-09-13 Washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016178837A JP2018042681A (en) 2016-09-13 2016-09-13 Washing machine

Publications (1)

Publication Number Publication Date
JP2018042681A true JP2018042681A (en) 2018-03-22

Family

ID=61618633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2016178837A Pending JP2018042681A (en) 2016-09-13 2016-09-13 Washing machine

Country Status (3)

Country Link
JP (1) JP2018042681A (en)
CN (1) CN109689960A (en)
WO (1) WO2018050060A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6286344B1 (en) * 1999-02-04 2001-09-11 Lg Electronics Inc. Washing machine with tilted tub assembly
JP2000312800A (en) * 1999-04-30 2000-11-14 Sanyo Electric Co Ltd Washing machine
JP2002346282A (en) * 2001-05-23 2002-12-03 Toshiba Corp Drum type washing machine
CN2851319Y (en) * 2005-08-03 2006-12-27 无锡小天鹅股份有限公司 Suspension device for washing machine
CN102767066B (en) * 2012-07-21 2017-06-23 青岛海尔洗衣机有限公司 Washing machine damping assembly and washing machine
JP2015109943A (en) * 2013-10-30 2015-06-18 パナソニックIpマネジメント株式会社 Washing machine
KR102133190B1 (en) * 2013-11-04 2020-07-13 엘지전자 주식회사 Washing machine and method of manufacturing the same
JP6502087B2 (en) * 2014-12-22 2019-04-17 アクア株式会社 How to design a washing machine

Also Published As

Publication number Publication date
WO2018050060A1 (en) 2018-03-22
CN109689960A (en) 2019-04-26

Similar Documents

Publication Publication Date Title
US7310978B2 (en) Drum-type washing machine with elastic oil damper
US9963814B2 (en) Washing machine
US9951454B2 (en) Washing machine
JP2006230591A (en) Drum type washing machine
US20160010261A1 (en) Washing machine
KR100808191B1 (en) Washing Machine
JP2009213917A (en) Drum washing machine
JP2006316989A (en) Hydraulic damper
JP6042138B2 (en) Damper for washing machine
JP2018042681A (en) Washing machine
JP2006122467A (en) Drum type washing machine
JP2006000190A (en) Drum type washing machine
JP2007044268A (en) Drum type washing machine
JP6484461B2 (en) Washing machine
JP4791981B2 (en) Drum washing machine
KR102229297B1 (en) Washing machine
CN114369927A (en) Clothes treatment device and vibration-proof device
JP2014104310A (en) Washing machine
JP5127892B2 (en) Washing machine
KR100649601B1 (en) Damper of Washing Machine
CN108978126B (en) Washing machine
JP2015043801A (en) Drum-type washing machine
JP7170172B2 (en) washing machine
JP2022091265A (en) washing machine
JP2010166941A (en) Washing machine

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20190909

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20200917

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20200924

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20201110

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20210401

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20210630

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20210729